This season's dance crews are introduced: Beat Ya Feet Kings, Fr3sh, Artistry in Motion, Afroborike, Rhythm City, Southern Movement, Massive Monkees, We Are Heroes, and Vogue Evolution. Each crew dances to a song they have chosen and choreographed, and the celebrity judges, Shane Sparks, Lil Mama and JC Chasez, pick one out of every three groups to face off in the sudden death challenge. In this challenge, each crew is given thirty seconds to dance their prepared choreography to a remix of "Boom Boom Pow" by the Black Eyed Peas. Based on these performances, the judges pick one of the three crews to leave the competition.moreless