Teigen delivered just that in Las Vegas Wednesday night at "Sinatra 100: An All-Star GRAMMY Concert," celebrating what would have been Frank Sinatra's 100th birthday.
Clad in a tight gold beaded minidress, the supermodel posed for photos with her husband, John Legend, and Alicia Keys, who both performed at the event. And oh, right, her growing belly was there, too.
Legend shared a snap of the trio on Instagram, captioning it "Backstage getting mommy advice from @aliciakeys." But it was right back to funny business inside the venue, courtesy of Behati Prinsloo, Adam Levine and some sneaky bunny ears:
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