PICS: Star Sightings

Superstar Bruno Mars electrified the Super Bowl XLVIII Halftime Show, performing with Chad Smith, Flea and Anthony Kiedis, at the Metlife Stadium in East Rutherford, New Jersey on February 2. Mars is the youngest performer to headline the Super Bowl halftime performance in the event's history.

Anchorman 2 star James Marsden sits in the barber chair to sample some new Old Spice hair care and styling products during their Hair That Gets Results campaign in New York on Jan. 31.

Austin Mahone performs at Times Square on Good Morning America January 31.

Good friends and X-Men co-stars Patrick Stewart and Ian McKellen put on their game day faces for this photo, tweeted by Stewart, and the timing couldn’t be better for the upcoming Super Bowl!

Miley Cyrus tried Jay Leno's style on for size when she showed up to The Tonight Show on Jan. 31. The Bangerz singer wrote in part on Instagram: "Jay Leno swag …#bangerztour"

Former Full House co-stars Dave Coulier, John Stamos, and Bob Saget reunited again for their promotion of Dannon Oikos Greek yogurt, and were all smiles and hugs as they mugged for the cameras in New York City on January 30.

Bruno Mars clutched a football while attending a press conference for the Pepsi Super Bowl XLVIII Halftime Show on January 30. The Just the Way You Are singer will be performing during Halftime on Sunday.

Who's the most style-savvy stud of these two? Oscar nominees Matthew McConaughey and Jared Leto both stepped out in eye-catching outfits for the U.K. premiere of their film Dallas Buyers Club on Jan. 29 in London.

Actress Cheryl Hines accepted her star on the Hollywood Walk of Fame on January 29.

Lorde arrived back in her native New Zealand on January 29 after winning two Grammys on Sunday.

Following his arrest in Miami for allegedly drag racing a rented Lamborghini, Justin Bieber was spotted on an ATV in Panama City, Panama. The pop star was reportedly shooting an "impromptu" video on Jan. 27 as his rumored new girlfriend Chantel Jeffries stood on the sidelines.

Eric Stonestreet participated in Meet the Actors at Apple Store Soho in New York City on January 27.

Grammy winner Lorde hung out with her new famous friend Taylor Swift during the Pre-Grammy Gala and Salute to Industry Icons honoring Lucian Grainge on Jan. 25 in Beverly Hills, California.

R&B artist Ne-Yo and DJ Cassidy kicked off this year’s Grammy Awards at the 6th annual Midnight Grammy Brunch in Hollywood on Jan. 25, where guests enjoyed cocktails courtesy of Malibu Red.

The tongue is back! Miley Cyrus gave her trademark pose for a photo op with Pharrell Williams at the Pre-Grammy Gala and Salute to Industry Icons event honoring Lucian Graingeon on Jan. 25 in Beverly Hills, California.

ET is going live from the Grammys! We're pairing up with TVGN to bring you the red carpet live; be sure to tune in to TVGN Live with ET at the Grammys, on Sunday, January 26 at 5:00 PM ET/PT. To find your channel go to www.TVGN.tv.

Hugh Jackman and wife Deborra-Lee Furness "flipped the switch" to light a model of the Empire State Building on Friday in honor of Australia Day on January 24.

Following the arrest of her ex Justin Bieber, Selena Gomez was spotted out with her best friend Demi Lovato. The gals were seen leaving Los Angeles restaurant Craig's on Jan. 23.

RoboCop star Gary Oldman attended the film’s photocall at the SLS Hotel in Beverly Hills on January 23. In RoboCop, Oldman plays Dr. Dennett Norton, the chief scientist who is responsible for the creation and building of the RoboCop.

Suburgatory actress Cheryl Hines and SNL alumn Molly Shannon made a stop at the Avocados From Mexico suite for some avocado themed cocktails and bites during the Sundance Film Festival in Park City, Utah on Jan. 19.

New Girl Zooey Deschanel and The Mindy Project's Mindy Kaling got all dressed up in trendy LBDs for ELLE's Annual Women in Television Celebration on Jan. 22 in West Hollywood, Calif.

Dressed in a formal Monique Lhuillier gown, Vanessa Hudgens struck a pose with her Gimme Shelter co-star Rosario Dawson during a screening of the film at the Museum of Modern Art on Jan. 22 in New York City.

Grammy winner Jennifer Hudson sang to a lucky audience on board a Carnival cruise ship in New York on January 22.  Her performance kicked off the new 'Carnival LIVE' concert series for Carnival Cruise Lines, which will feature 14 more recording artists on their ships throughout the year beginning in April.

Brooklyn Nine-Nine star Chelsea Peretti looked lovely at the glitzy Elle 'Women In Television' celebration, held in Los Angeles on January 22.

Taylor Swift went shopping for antiques at Olde Good Things in Los Angeles on January 22.

Ocean Drive magazine's 21st Anniversary Issue cover girl Jenna Dewan was joined by her handsome husband Channing Tatum at SL Miami at the James Royal Palm Hotel on Jan. 21.

No Doubt front woman Gwen Stefani snapped a selfie of her growing baby bump on Jan. 21. She tweeted: "bump it #allblack #inappropriateshoes #capturethemoment #miracle"

Legendary recording artist Neil Young was honored by The Recording Academy Producers & Engineers Wing as part of its annual Grammy Week in Los Angeles on January 21. The recognition comes due to Young’s historic career, including two previous Grammy wins, but also his dedication to the preservation of music recording and sound quality. Young is the founder of Pono, a music download service and digital audio format being developed to compete with MP3s, and improve on the compressed and compromised sound quality an MP3 file provides.

ET is going live from the Grammys! We're pairing up with TVGN to bring you the red carpet live; be sure to tune in to TVGN Live with ET at the Grammys, on Sunday, January 26 at 5:00 PM ET/PT. To find your channel go to www.TVGN.tv.

Prince Harry welcomed the Walking with the Wounded South Pole Challenge team at Mandarin Oriental Hyde Park on January 21 in London.

Jessica Alba faced New York City's polar vortex in style. The Honey actress sported some fashionable outerwear as she braved the snow, and headed out of her SoHo hotel on Jan. 21.

True Blood star Joe Manganiello and girlfriend Bridget Peters stopped by the pop-up cafe for Udi’s Gluten Free foods to enjoy some healthy dishes during the Sundance Film Festival on Friday, January 17 in Park City, Utah.

Actress Elle Fanning posed for a portrait during the 2014 Sundance Film Festival at the Getty Images Portrait Studio on Jan. 20 in Park City, Utah. Notice the Low Down star's hotdog socks that she's sporting with sandals!

Actress Jessica Alba was Jimmy's guest on Late Night with Jimmy Fallon in New York City, and together they played a rollicking game of Double Turtleneck Ping Pong on January 20th.

12 Years a Slave star Chiwetel Ejiofor stands with co-star Brad Pitt, who also produced 12 Years, on the red carpet at the 2014 Producers Guild of America Awards held at The Beverly Hilton Hotel on January 19. Pitt was still sporting his close-cropped buzz cut required for his upcoming film Fury, where he plays the commander of a World War II tank crew.

ET's own Nancy O'Dell shows up in style to the 20th Annual Screen Actors Guild Awards at The Shrine Auditorium on January 18 in Los Angeles, California.

Aaron Paul celebrates a victory after playing Wii Fit U during the Sundance Film Festival on January 17.

Kanye West is not a friend of PETA. The Yeezus rapper donned a fur coat to the Givenchy Menswear Fall/Winter 2014-2015 Show as part of Paris Fashion Week on Jan. 17.

Actor Mark Wahlberg won the Critics’ Choice Award for Best Actor in an Action Movie for his performance in Lone Survivor. He also accepted the Best Action Film award on behalf of the movie, as he was one of the producers. Wahlberg dedicated the award to all of the real men and women who died during the tragic Navy SEAL operation that is depicted in Lone Survivor. The ceremony was held in Santa Monica on January 17.

Modern Family Star Eric Stonestreet meets Mickey Mouse at Disneyland in Anaheim, California on January 16.

Jake Gyllenhaal braves the cold in New York City on January 16.

Actress Ashley Tisdale hangs out with the stars of Disney's Cloud 9, Dove Cameron and Luke Benward, at Radio Disney in Burbank Calif. on January 16.  Ashley's producing the Disney Channel Original Movie which premieres Friday, January 17 at 8 p.m. ET/PT.

Thor actor Chris Hemsworth joined Academy President Cheryl Boone Isaacs to announce the nominees for the 86th Academy Awards on Jan. 16 in Beverly Hills, Calif. Click HERE to see the full list of nominees.

Lea Michele escorted her Glee and Spring Awakening co-star Jonathan Groff to the after party for the premiere of his new HBO show Looking on Jan. 15 in Hollywood, Calif.

Pregnant Drew Barrymore, donning a red blouse with white hearts, signed copies of her new photo book Find It In Everything, at The Grove in Los Angeles on January 15.

Co-stars Keira Knightley and Chris Pine walked the black carpet of the Jack Ryan: Shadow Recruit premiere in Hollywood on January 15.

Never Been Kissed star Drew Barrymore locked lips with her husband Will Kopelman at the Chanel Celebration of the release of the actress' photo book Find It In Everything on Jan. 14 in Beverly Hills, Calif. Drew and Will are expecting their second child later this year.

Stunning supermodel Kate Upton donned a drop-dead sexy black floor-length dress, and took to the red carpet outside NBC and Time’s celebration of the 50th anniversary of the Sports Illustrated Swimsuit Issue, held at the Dolby Theater in Hollywood on January 14.

Jennifer Lopez sashayed into the 2014 Fox All-Star Party at the Langham Hotel in Pasadena, California on January 13.

Did Mariah Carey approve this? America's Got Talent host Nick Cannon loaded up on accessories to go with his tuxedo for the premiere of Universal Pictures' Ride Along comedy on Jan. 13 in Hollywood, Calif.

Coming off a big night at the Golden Globes, New Girl's Zooey Deschanel stepped out in her usual adorable style for the 2014 Fox All-Star Party on Jan. 13 in Pasadena, Calif.

Actor Luke Evans, star of The Hobbit: The Desolation of Smaug, had a front row seat at the Emporio Armani fashion show, during the designer's display of menswear for the Autumn/Winter 2014 season, in Milan, Italy on January 13.

Queen Latifah plays Antler Ring Toss on Late Night with Jimmy Fallon on January 13.

Rapper Usher and musician The Edge, from U2, were all smiles at the Golden Globes after party held by Netflix and The Weinstein Company at the Beverly Hilton Hotel on January 12.

Emma Thompson (Saving Mr. Banks) enjoys a day at Disneyland with her daughter, Gaia, in Anaheim Calif. on January 13.

Katie Holmes sat courtside at the Knicks/Heat game at Madison Square Garden on January 9.

Olivia Wilde posed at the W magazine pre-Golden Globes party at Chateau Marmont in West Hollywood on January 9.

Kristen Bell reunited with her Veronica Mars co-star Ryan Hansen just months before the March 14 movie release date. The actors had a little fun at the Variety Breakthrough of the Year Awards during CES in Las Vegas, Nevada on Jan. 9.

Kardashian family matriarch Kris Jenner was all smiles at the star-studded grand opening of the hot new Big Apple eatery NYY Steak Manhattan, which will be the elite chain's flagship location, on January 9.

Maria Sharapova played tennis in heels during the Women with Drive event at Porsche Centre in Melbourne, Australia on January 9.

German supermodel Heidi Klum has gone country! Klum popped on country crooner Brad Paisley's cowboy hat for a photo op at the 40th Annual People's Choice Awards on Jan. 8 in Los Angeles, Calif.

Ian Somerhalder gave his on-again, off-again girlfriend and The Vampire Diaries co-star Nina Dobrev a celebratory kiss as the two accepted their awards for Favorite On-Screen Chemistry at the 40th Annual People's Choice Awards in Los Angeles, Calif.

Justin Timberlake was the big winner at the 40th Annual People's Choice Awards on Jan. 8 in Los Angeles, Calif. The 20/20 Experience artist took home three trophies including Favorite Album, Favorite Male Artist and Favorite Pop Artist.

Leonardo DiCaprio and his Wolf of Wall Street director Martin Scorsese attended the 2014 National Board of Review Awards Gala in New York City on January 7.

Kevin Jonas laid a gentle hand on his pregnant wife Danielle Jonas' belly as the two posed at the Amazing Baby Days app launch event on Jan. 7 in New York City.

Funny gal Kristen Wiig showed up in a vintage-looking mini-dress for the screening of IFC's The Spoils Of Babylon on January 7 in Los Angeles, Calif.

Newly engaged Gabrielle Union flashed her huge ring from NBA pro Dwyane Wade while on Late Night With Jimmy Fallon on Jan. 7 in New York City. WATCH.

Prince William arrived for his first day to study Agricultural Management at St. John's College on January 7.

Matthew McConaughey attended The Film Society of Lincoln Centers Film Comment Best Films of 2013 Luncheon on January 7 in New York City.

While most of the country is bundling up for the polar vortex, Kim Kardashian is heating up Hollywood in this sexy style. The new mom stepped out for a shopping trip at Cartier in Beverly Hills, Calif. on Jan. 6.

Actress Kristin Chenoweth takes a break outside her hotel in Santa Monica, California to read some tummy trimming tips from the new Reader's Digest book, 21-Day Tummy.

A polar vortex couldn't keep Jessica Simpson from slipping into a sexy LBD. The new mom flashed her post-baby body while promoting Weight Watchers on Good Morning America in New York City on Jan. 7.

The women of Girls left Brooklyn for a night in the big city! Jemima Kirke, Lena Dunham, Allison Williams and Zosia Mamet got all glammed up for the HBO show's season 3 premiere event on Jan. 6 in New York City.

Blue Jasmine actress Cate Blanchett and All Is Lost actor Robert Redford celebrated their big roles at the 2013 New York Film Critics Circle Awards ceremony held at New York City's Edison Ballroom on Jan. 6.

Taylor Swift rocked a Victoria's Secret tee as she was snapped leaving a gym in Los Angeles on January 6. The singer performed at the 2013 VS fashion show this past year. 

Actress Cameron Diaz was bright eyed and ready to take on the day when she arrived to Good Morning America's New York City studio on Jan. 6. Diaz is busy promoting her new Body Book.

Captain Phillips star Tom Hanks shared a laugh with former All About Steve co-stars Sandra Bullock and Bradley Cooper during the Mercedes-Benz arrivals for the 25th Annual Palm Springs International Film Festival Awards Gala on Jan. 4.

The Wolf Of Wall Street’s Jonah Hill and actress Marisa Tomei hung out during Variety’s Creative Impact Awards at the 10 Directors To Watch brunch, which was held during the Palm Springs International Film Festival on January 5.

Blake Lively made an appearance for Gucci in Dubai on January 3.

A newly engaged Kelly Rowland covered up her teeny bikini while enjoying a little sun and sport in Miami, Fla. on Jan. 2.

After announcing their separation this past year, actors Catherine Zeta-Jones and Michael Douglas reunited on the slopes with their kids to ring in 2014. Douglas shared a family photo on Facebook, writing: "Happy New Year from Quebec, Canada... where it is minus 10F."

Newsroom star Jeff Daniels, who is also a longtime musician with five full-length recorded albums to his name, gave the media a rocking preview of his upcoming six-concert engagement at 54 Below in New York City on January 2. The run is set for two performances a night from January 2-4.

Singer Kelly Rowland unwinds by kicking a soccer ball around on the beach in Miami on January 2.

Kaley Cuoco and husband Ryan Sweeting, who tied the knot on New Year's Eve, enjoy each other's company as they wait for the delivery of their new car on January 2 in Los Angeles .

Will Smith and wife Jada Pinkett Smith are all smiles as they arrive for a flight out of LAX on New Year's Day.

Miley Cyrus rang in the New Year by locking lips with Ryan Seacrest. She tweeted the moment, writing: "Yay!!!! They caught our NY midnight kiss! Happy New Years @RyanSeacrest & thank you for having me."

A bikini clad Katie Holmes celebrated the New Year with her daughter Suri Cruise by her side. The girls were spotted sunning in Miami, Fla. on Jan. 1.

Carson Daly, host of NBC’s singing competition show The Voice, rocked the New Year’s festivities and counted down to the start of 2014 in the middle of Times Square in New York City on December 31. (And then January 1 immediately after.)

Marc Anthony and girlfriend Chloe Green spend New Year's Eve on a boat in Barbados.

Singer Seal brings his boys to ski in Mammoth, Calif. on December 30.

While many celebs have hit the beach, Usher is spending his holiday in the Sahara Desert. However, riding a camel can be exhausting as the R&B star showed in a recent Instagram pic. 

Ben McKee and Wayne Sermon, members of the band Imagine Dragons, of Radioactive fame, celebrated the dedication of a memorabilia case, containing props and costumes from their music videos, at The Hard Rock Hotel & Casino on December 30.

Charlize Theron spends the penultimate day of 2013 on the beach in Hawaii.

Gwen Stefani, who is pregnant with her third child, fixes her son's goggles as she takes her 5-year-old and 7-year-old sons to a skiing lesson in Mammoth, Calif. on December 30.

The Big Bang Theory actress Kaley Cuoco gets a workout in at a Sherman Oaks, Calif. gym on December 30 with her wedding reportedly coming soon.