Brett W. Gurewitz (born May 12, 1962), nicknamed
Mr. Brett, is the guitarist and a songwriter of
Bad Religion. He is also the owner of the music label
Epitaph Records (which has handled many Bad Religion releases) and sister-labels
ANTI-,
Burning Heart Records,
Fat Possum Records, and
Hellcat Records. He has produced albums for Bad Religion as well as Epitaph Records labelmates
NOFX,
Rancid, and
Pennywise, among others. Gurewitz also had a project called
Error, which also featured
Atticus Ross,
Leopold Ross, and
Greg Puciato.