The 'New Year's Eve' Ladies' Show-Stopping Looks

Alyssa Milano showed off her post-baby bod since giving birth in late August in this little black dress.

Abigail Breslin looked pretty in her princess-like tulle Marchesa gown.

Stacy Ferguson aka Fergie came out to support hubby Josh Duhamel, but ended up stealing the show in this glitzy silver Monique Lhullier gown and dramatic red lipstick.

Sofia Vergara looked predictably hot in her corset-like Zac Posen dress she paired with sexy peep toe pumps.

Clearly, this 53-year-old has still got it! Michelle Pfeiffer stunned in this fitted purple Dolce & Gabbana number.

Hilary Swank glittered in her lacy blue Elie Saab dress.

Katherine Heigl showed off her fab figure in this skin-tight Dolce & Gabbana creation.

Lea Michele definitely had the attention of co-star Ashton Kutcher (and just about every other guy in the room) in this sparkly --and verrry low-cut -- Valentino gown.

New Year's Eve will probably be the most celeb-packed movie you'll see all year -- and last night's Los Angeles premiere was similarly afflicted with a case of celeb-overload! But fashion followers rejoice -- from Lea Michele's daringly low-cut gown to Michelle Pfeiffer's picture-perfect purple number, feast your eyes on how the A-list ladies do "New Year's Eve!"