Remember when you used to sing along to your favorite artist and dance around with your friends?
Well, famous singers do that, too!
Justin Bieber, Selena Gomez, Ashley Tisdale and a lot of other young celebs are part of a video in which they sing "Call Me Maybe" by Carly Rae Jepsen. And we know what you're wondering...
Who the heck is Carly Rae Jepsen?!