Watch the Knocks, Cam'ron Soundtrack Subway Showtime in 'New York City'

As the dance duo the Knocks, James “Mr. JPatt” Patterson and Ben “B-Roc” Ruttner have been bringing their mobile party to sold-out venues around the world. Finally, listeners at home can get in on the action: Their debut full-length, 55, is a multi-headed celebration that gathers singers from all over the…