Originally from Chelmsford in Essex, Cassetteboy consists of two semi-anonymous characters known only to the world as Mike and Simon. The name originates from their use of cassette recorders (now replaced by computers) to cut up voice and music samples.

Mike describes the musical philosophy behind Cassetteboy:

"Basically we record famous people and make it sound like they're talking about sex or drugs. It's a winning formula."

"The Parker Tapes" (7 years in the making) was released in 2002 to widespread acclaim, bringing with it a great deal of recognition. This resulted in gigs at several mainstream festivals, as well as accompanying Squarepusher on the American leg of his tour.