VIDEO: Kirk Hammett Joins UFO on Stage

Kirk Hammett is a guitar hero, but when a guitar hero gets to perform with some of their own heroes, that's truly a special moment.

The Metallica guitarist joined UFO on stage over the weekend at the Avalon Theater in Hollywood as part of the Megacruise pre-party where he performed "Doctor Doctor" and "Shoot Shoot."

(WARNING: Some NSFW language from excited fans in the video below.)