Former Red Hot Chili Peppers guitarist Jack Sherman had died aged 64.
The group broke the news on his death on their social media channels.
A statement read: “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.”
Jack is believed to have died on August 18th.
Sherman replaced Hillel Slovak on the 1983 debut album and the subsequent Freaky Styley, but was replaced by Slovak before the album was released.