The couple stunned in their looks, with Teigen opting for a sheer, aqua Georges Hobeika gown, which featured a thigh-high slit and braided details, and Legend sporting a black tuxedo, complete with a velvet jacket and dapper bow tie.
Teigen and Legend were affectionate as they posed for pics, with the 34-year-old model laughing alongside her singer husband, 41. At one point, the Voice coach offered his wife a kiss on the cheek, and she returned the favor by adoringly watching him smile for photos.
"Mom and dad are here to confiscate all the gateway drugs," Teigen quipped on Twitter alongside pics of her and Legend, adding in a second post, "every year we get older and older it blows my mind."
Once inside the bash, Teigen and Legend took a turn in the portrait studio, posing for a sexy snap that had Teigen leaning on Legend as he placed his hand on her thigh.