Former Metallica bassist Jason Newsted reunited with the heavy metal band - comprising James Hetfield, Lars Ulrich, Kirk Hammett and Robert Trujillo - at a bizarre 30th anniversary celebration.
The marathon six-hour celebration featured tribute performances, game shows and taped celebrity messages, including one from the members of U2, reported MTV online.
Introduced by Hetfield as "someone who lived with us, and toured with us and did stuff with us for 14 years", Newsted performed Harvester of Sorrow and Damage Inc. alongside his replacement, current bassist Robert Trujillo.
There was a sombre moment when frontman Hetfield and guitarist Hammett welcomed late bassist Cliff Burton's father, Ray, to the stage. Burton was killed in a freak tourbus accident in Sweden in 1986.
The rockers, who were recently in India for a concert, were joined onstage by a series of guests including Hammett's high school pal and occasional Hetfield stand-in John Marshall, members of Diamond Head and Saxon frontman Biff Byford, who headlined Metallica's second-ever show in Los Angeles.