The Smurfs sequel, smartly named The Smurfs 2, may star (the voices of) Katy Perry and Neil Patrick Harris, but it also will include a new, PG-rated track from Britney Spears. Recently departed from the set of The X Factor, Brit's got the likes of will.i.am on her side, and is reportedly back in the studio. Movie's out July 31 and "Ooh La La" is undeniably reminiscent of "I Wanna Go," with a little Ke$ha influence thrown in there. She raps! Well, actually, she speaks: "Turn it up till the speakers pop." Go ahead, do it.