UK grime MC Jammer is set to release his debut full-length album, Jahmanji, July 5 via Big Dada. Before that day comes, treat yourself to the first video to surface from the album for the single "10 Man Roll (feat. Boy Better Know)." Jammer's video is pretty funny, as it features kids waiting in a queue to get into a outdoor birthday party, but with a huge, darkly dressed bouncer checking names off a clipboard like it's a club guestlist. After the tots rush the man at the gate and overtake the dancefloor (and bouncy castle), all sorts of childish pandemonium breaks out while Jammer and his Boy Better Know crew deliver Chinese-instrument-sampling grime beats and wax poetic about how much money they have.