Primus

Primus had 'South Park' co-creator Matt Stone on drums during their Los Angeles show. He was far from the only special guest throughout the night.

It's all starting to feel a bit 'Spinal Tap.'

They were also joined by a very cool (and special) guest!

See the lineup for Tool's three-day festival taking place in 2025.

Three-drummer cover of “Intruder” also included Mastodon’s Brann Dailor.

The members of Mastodon will team up with some suitably prehistoric friends when they join Dinosaur Jr. for a series of tour dates later this year.

'The Desaturating Seven' is Primus' first album with their classic lineup since 'Tales From the Punchbowl.'

Primus have released their track “The Scheme” from upcoming album 'The Desaturating Seven,' which is released on Sept. 29.

The video is inspired by a children's book that frontman Les Claypool and his wife used to read to their kids.

'The Desaturating Seven' is based on a children's novel about goblins who remove all the color from the world.