Part 4 of the world famous online dance battle between Jon M Chu and Adam Sevani (Step Up 2: The Streets) against Miley and Mandy has just been released.

If you thought the first three videos were amazing, M&M’s response has blown all the others away with big names such as The Groovaloos, Harajuku Girls, Do Knock, Teresa Espinosa, Killafornia and Poppin’ Pete joining the M&M Cru.

For those who don’t know, Jon M. Chu (Director of Step Up 2) and Adam Sevani (Step Up 2) issued a dance video challenge to Miley and Mandy on April 10. The video and M&M’s response took the world by storm after it attracted the best dancers from all over the world in the biggest online dance battle ever. You can watch the previous videos below!

Video 1: The First Challenge
Video 2: M&M’s Response
Video 3: ACDC’s Reply featuring: The Jabbawockeez, Luigi, Moy, Dave Scott, Legacy, Casper, The Scott Brothers, Lil Jon, Flea Roc, Lacey Schwimmer, Hok Konishi, Diana Ross, Chris Brown