Miley Cyrus, Janelle Monáe, Kacey Musgraves, and Cardi B also confirmed to perform.
Writing sessions for the band’s planned twelfth studio album were put to a halt by the devastating Woolsey Fire in Los Angeles.
Annie Clark also thanked Peppers guitarist Josh Klinghoffer for his “fucking bitching guitar playing.”
It’s been years since ex-Red Hot Chili Pepper released a recording on the instrument.
The Red Hot Chili Peppers singer got into a verbal spat with Houston Rockets guard Chris Paul.
Frontman Anthony Kiedis says the band plans to reconvene in two weeks’ time.