Former Red Hot Chili Peppers guitarist Jack Sherman has died.
The 64-year-old played on the band's first tour of the USA, and in time for their debut album in 1983, replacing on/off guitarist Hillel Slovak.
He helped to write tracks such as Baby Appeal, Buckle Down and Mommy, Where's Daddy?
The band has now paid tribute to Mr Sherman, who passed away of unknown causes.
The band wrote on its Instagram page: "We of the RHCP family would like to wish Jack Sherman smooth sailing into the worlds beyond, for he has passed. Jack played on our debut album as well as our first tour of the USA.
"He was a unique dude and we thank him for all times good, bad and in between. Peace on the boogie platform."
Mr Sherman also co-wrote a lot of their second studio album Freaky Styley, but was replaced by Slovak by the time the album came out.
He was left "bitterly disappointed" by the decision not to include him within the band's induction to the Rock & Roll Hall of Fame in 2012.
"I'm being dishonoured, and it sucks," he told Billboard at the time.
"It's really painful to see all this celebrating going on and be excluded. I'm not claiming that I've brought anything other to the band… but to have soldiered on under arduous conditions to try to make the thing work, and I think that's what you do in a job, looking back. And that's been dishonored."
