At Mark Cuban's DIRECTV Super Saturday Night party, the singer was impressed by one fan's courage after she pulled him up on stage. So much so that she gave him a gift he'll never forget.
"I want to give you a present because you were so nice. You took your t-shirt off for me," said Katy, who went on to remark on the young man's confidence. "You're a little bit nervous but not as nervous as you should be."