Brent Hinds

Initially the System of a Down bassist was accused of inflicting the physical injury to Hinds after a 2007 awards ceremony.

Brent Hinds has played his first post-Mastodon show and has another coming up with three bands that he's a part of.

"Obviously, you gotta be somebody who we all get along with and can stand the true test of time."

"It's amazing that we made it 25 years with the four of us," he said.

After Brent Hinds recent exit, Mastodon continued with YouTube favorite Ben Eller stepping in to help them complete their show at Tool's festival.

At Tool's Live in the Sand Festival, Mastodon debuted their new lineup with Brent Hinds' fill-in. See fan-filmed video and the 17-song setlist.

"We are still very inspired and excited to show up for fans in this next chapter of Mastodon," the band said in a statement.

'It’s totally about depression and leading a hard life,' says Pike.

Hinds recently said he didn't like opening for Disturbed.

Guitarist Brent Hinds made the remark.