Gwen Stefani and Blake Shelton, Nicole Kidman and Keith Urban: Cutest Couples at 2019 ACM Awards

The awards show red carpet was filled with love on Sunday!

The 2019 Academy of Country Music Awards was filled with love.

The biggest names in country music stepped out to the red carpet in Las Vegas on Sunday. And while we certainly couldn't get enough of their vibrant ensembles, our hearts melted when we noticed one accessory many of them had in common: their significant others!

Now, ET's breaking down our favorite celebrity couples that attended the awards show hand-in-hand.

Miranda Lambert and Brendan McLoughlin

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The newlyweds, who revealed in February that they secretly tied the knot, pulled out all the stops while making their red carpet debut on Sunday. McLoughlin, clad in a classic black tux, let his wife steal the show. The "Vice" singer opted for a neon green dress that she paired with matching statement earrings and a colorful clutch.

Reba McEntire and Skeeter Lasuzzo

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The look of love! The host of the ACM Awards couldn't stop smiling while posing with her new boyfriend. "We're having a great time, traveling the world and seeing things and having fun," McEntire shared with ET earlier this month. "I'm still working and loving what I do. I'm at a time in my life where I'm very grateful, very content [and] very calm. Love it."

Jessie James Decker and Eric Decker

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Could these two be any hotter? As fans of the couple were raving over their looks on social media, the lovebirds were gushing about each other while chatting with ET on the red carpet. "How beautiful is she?" the former NFL player marveled. "That red lipstick is just stunning." We couldn't agree more!

Cole Swindell and Barbie Bank

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The sweet new couple also made their red carpet debut on Sunday, cuddling up close as they posed for photos. "I am beyond excited and proud of you babe!!!" the WWE star tweeted in support of her beau, whose catchy track "Break Up in the End" was nominated for Song of the Year.

Luke Bryan and Caroline Boyer

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The "Sunrise, Sunburn, Sunset" singer coordinated outfits with his wife on Sunday, and we are so here for it! "This is branching out for me. ... It's a little Vegas going on," Bryan explained to ET on the red carpet, giving us a close-up look at his Tom Ford tux. "I may leave it at the MGM [Grand] in the closet. Year after year when I come back, I'll put it on."

Nicole Kidman and Keith Urban

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The Big Little Lies star and her husband were just one of many couples who held hands on the carpet while photographers snapped their pics. "He's my entertainer of the year," Kidman adorably gushed while chatting with ET.

Colton Underwood and Cassie Randolph

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The Bachelor lovebirds made their red carpet debut on Sunday and didn't hold back with their PDA. The two adorably shared a smooch just moments before catching up with ET. "She's beautiful," Underwood said of his fiancee, adding that the two are really enjoying their engagement so far. "We're having fun. We're good. We're trying to live as normal lives we can."

Carly Pearce and Michael Ray

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The adorable duo, who got engaged last December, gave ET an update on how wedding planning is going. "We're right in the middle of it," Ray revealed. "Her and her mom are planning everything." Pearce chimed in, "It's going really well. We're keeping it really simple and my mom and I are doing it together. I have [my dress] and it's awesome. All of my girlfriends think it was custom made for me, and it wasn't, so that makes me feel like it's a good one for me."

Chris Lane and Lauren Bushnell

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Sounds like this could be one of their last red carpets as boyfriend and girlfriend! The country music star teased to ET that he is "working on" planning a proposal. "It's my first ACMs with my beautiful girlfriend, and I'm excited about that tonight," he shared, adding that he will probably get down on one knee sometime this year. "Don't tell her that, though."

Blake Shelton and Gwen Stefani

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Although the two didn't walk the red carpet together, they certainly stole the show inside. Stefani was seen cheering on her man as he took the stage to perform his new single, "God's Country."

For even more cute couple moments from the 2019 ACM Awards, watch the video below.

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