1. Korn

On December 9, 2006, a band whose name is inextricably linked to growling, horror-flick-caliber rage, stood before a live orchestra and introduced a lucky crowd of 50 to something completely different. To drive their new sound home, Korn invited some special guests to accompany their orchestra (which consisted of cellos, upright bass, cimbassos, trombones, a singing saw, a glass harmonica, choir bells and a set of Japanese conga drums called taiko). Amy Lee from Evanescence joins Korn for "Freak On A Leash" and The Cure guest on a mash-up of "Make Me Mad" and "In Between Days." Nowhere else is the transformative power of 'MTV Unplugged' more apparent. Watch as California hard rockers Korn strip down and give their angry anthems a new flamenco flair, in this classic episode of 'MTV Unplugged.'