During a recent interview on Bill Maher’s podcast, “Club Random With Bill Maher”, Lars Ulrich told the story of how excited Metallica was to open shows for the Rolling Stones about 20 years ago.

He shared how they once laughed over Mick Jagger having a truck with exercise equipment to warm up before shows in, only to now also have the same…though, they may be a bit more friendly and personable to their opening acts, as he reveals what Metallica band members were asked NOT to do when Rolling Stones members were around.