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Blake Shelton, Gwen Stefani, Demi Lovato, Wilmer Valderrama, Inside Vanity Fair Oscar Party

Kevin Mazur/VF16/WireImage

Gwen Stefani and Blake Shelton stole the show when they made their red carpet debut as a couple at Vanity Fair's Oscars 2016 party, where they hung out with fellow cute celebrity couples.

Stefani wore a red, semi-sheer, satin flower petal-adorned Yanina Couture gown that showed off her fab figure, marking one of her most risqué—and gorgeous—looks. She and Shelton were photographed hanging out with fellow celebrity couple Demi Lovato and Wilmer Valderrama and Jessica Biel and Justin Timberlake. Double date nights soon?

Stefani and Oscar nominee Lady Gaga also took a pic together.

Gwen Stefani, Lady Gaga, Inside Vanity Fair Oscar Party

Kevin Mazur/VF16/WireImage

The party was hosted by Graydon Carter and took place at the Wallis Annenberg Center for the Performing Arts in Beverly Hills.

Other attendees included parents-to-be Chrissy Teigen and John Legend, who acted cute and cuddly as usual, Leonardo DiCaprio, who just won his first Oscar, Andy Samberg and Keegan-Michael Key, who took a funny photo with Timberlake, Chris EvansEddie RedmayneVanessa HudgensJessica Alba and Emily Blunt, who showcased her baby bump in a sleeveless, peach, embellished, empire waist Prada gown and reunited with her Devil Wears Prada co-star and fellow pregnant actress, Anne Hathaway.

A video posted by Demi Lovato (@ddlovato) on

New Oscar winner Brie Larson also appeared in a selfie video with Lovato and scarfed down burgers with Diane Kruger. Former celebrity couple Ben Affleck and Jennifer Garner also both attended the party—and did interact.

Demi later paid tribute to her beau with a slew of Instagram photos of the two.

"Look at how HANDSOME he is... They should've just called it The Wilmer's," she wrote. "I was the LUCKIEST woman in the room Sunday night. In so much love it's stoooopid."