N-Dubz: O2 Empire, London

GRIME IS THE NEW POP. The screams that greet support act Tinchy Stryder are shrill enough, but when N-Dubz bound on they're almost deafening. The trio — singer Tulisa Contostavlos, her cousin Dino "Dappy" Contostavlos in his ever-present floppy hat, and his rapping opponent Richard "Fazer" Rawson — haven't appeared much in the press, and they are on an independent label after a brief spell at Polydor; but they have managed to accrue three Top 40 singles, a triple-platinum debut album and an extremely excitable following.