Well, not reall but she (Katy) was hanging out at the Nickelodeon Kids Choice Awards. Now that she's single, she decided have some fun with Kristen Stewart and Selena Gomez.
Doesn't Kristen look thrilled to be on her lap?
With this photo of Katy & Carlos of Bg Time Rush, I think we'll play the game "insert caption here...
Credit: Kevork Djansezian/Getty Images for KCA