Korn's sophomore release may be of interest to mental-health professionals, but there is no reason for even the most twisted thrash-metal fans to expose themselves to the 50-minute self-indulgent primal scream of Life Is Peachy. Profanity-driven rants like the aptly titled ''K@#%!'' or ''Kill You'' undermine the band's compelling fusion of heavy riffs and tight hip-hop beats, leaving the impression that frontman Jonathan Davis is turning his well-publicized childhood traumas into a cheap marketing device. C-

