In 1990, Rick Smith and Karl Hyde relocated to Romford, where Martin Prudence, brother-in-law of Smith, introduced Emerson to him, with Hyde inviting Emerson to become the third member of techno band Underworld. 1994's dubnobasswithmyheadman was their commercial breakthrough onto the then burgeoning British electronica scene. While working on their second album, 1996's Second Toughest in the Infants, they released the single "Born Slippy .NUXX" in 1995, which was then re-released in 1996 and became a hit following its inclusion on the soundtrack to the movie, Trainspotting.