In 2013, all Troye Sivan wanted to do when it came to his style was “blend in.” He was 18 and new to walking red carpets. The Australian–South African singer-songwriter was afraid to embrace fashion because he “didn’t want to out [him]self.” Now, five years later, Sivan is confidently appearing on Saturday Night Live and walking red carpets as exalted as the 2018 Met Gala, where he wore custom Valentino.

“I felt amazing this night,” he tells Vanity Fair in this exclusive video about his debut at the Costume Institute’s annual event. “That’s another one of those nights where you kind of can’t believe it’s happening when it’s happening . . . planning a Met Gala look is one of the funnest things I’ve ever done. To be able to build the look from the ground up and work from the ground up with Valentino and Pierpaolo [Piccioli] on what I wanted the silhouette to be and what I wanted the color to look like and what I wanted to do with my hair and my makeup.”

But while Sivan was posing with Ariana Grande and Gigi Hadid, his boyfriend was home stewing. “My boyfriend was really, really jealous,” the 23-year-old admits.

See more of Sivan’s Met Gala night and fashion history in this video for Vanity Fair’s 2018 Best-Dressed.