Selena Gomez posed outside London's BBC Radio 1 studios Wednesday morning, and the former Disney star looked all grown up, sporting a sleek hairdo, polished white blazer and animal-print pumps.
But Gomez, 20, proved she hasn't lost her silly side as she mugged for the cameras, making funny faces for her fans.
However, at Sunday's Billboard Music Awards, Gomez prompted an even more hilarious expression from pal Taylor Swift, who stuck out her tongue at the sight of Selena's backstage smooch with on-again, off-again beau Justin Bieber.