Usually the Miley and Mandy Show videos require no introduction, but this one needs a little background info... Apparently it is a new trend on YouTube for celebrity dancers to go around challenging each other to video battles. So Jon M. Chu, director of Step Up 2: The Streets and star Adam Sevani challenged Miley and Mandy to a dance battle. Here is their original video:
Miley and Mandy responded with this video, which includes Step Up stars Channing Tatum and Jenna Dewan: