The clip shows Justin and Selena dancing around to the upbeat song, but the the two are not alone. They're also joined によって the likes of Ashley Tisdale and several members of Big Time Rush.
It's hard not to want to jump around with them -- the single is almost reinvigorated によって the footage of Justin & Co. having oh-so-much fun. There's even a scene where The Biebs and Sel look like they're about to キッス -- that is, until Ashley breaks it up.