A while back, Jon M. Chu (the director of Step Up 2) and Adam Sevani made a dance crew. They challenged Miley Cyrus and her best friend, Mandy, to an online dance battle. Both crews are really good, and the battle is still going on, even though the battle started in April. (Just for the record, I favor Jon's team, ACDC.) You can find the rest of the battle videos on Youtube. This is the first video.