In a world first Underworld have allowed one of their tracks for a new club track.

'Long Train' which samples 'Dark and Long' was produced by Petrae Foy (left) and PJC Project (Phil Caine) has been signed by CR2.

Carl Cox is already all over it after it was leaked cheekily before the band's thumbs up at the WMC.

Hear it at Petrae's MySpace.