Zac Foley, bassist with the highly successful early 1990s British modern rock act EMF, died yesterday (Jan. 3) at the age of 31. The circumstances of his death have yet to be revealed. Foley was born

Zac Foley, bassist with the highly successful early 1990s British modern rock act EMF, died yesterday (Jan. 3) at the age of 31. The circumstances of his death have yet to be revealed. Foley was born in Gloucester on Dec. 9, 1970, and was a founding member of EMF, which is best known for its 1991 No. 1 Billboard Hot 100 hit "Unbelievable."

EMF -- whose name officially stood for Epsom Mad Funkers, but according to legend really represented the phrase Ecstasy Mother F***ers -- had only one other U.S. hit, the No. 18 follow-up "Lies." But it had further top-10 U.K. success with "I Believe" (1991) and a cover of the Monkees' "I'm a Believer" in 1995, a collaboration with comedian Vic Reeves. EMF also had six other U.K. top-40 hits, and its debut album, "Schubert Dip," was certified platinum by the Recording Industry Association of America for U.S. sales of 1 million copies.

The group, which effectively disbanded in 1996 after two more albums, played several reunion shows last year to mark EMI's release of the "Epsom Mad Funkers" compilation, and was thought to be working on new material.