Stephen Stills

Christina Applegate

Mike Shinoda & Chester Bennington (Linkin Park)

Haim

Gary Cole

Lorde with Ted Stryker

No Doubt

Bastille with Ted Stryker

Jack Black

Stephen Stills, Don Felder, Graham Nash

Kristen Bell, Matt Asner (Austim Speaks), Dax Shepard, Liz Feld (Autism Speaks)

Weezer

Gary Clark Jr. with Kat Corbett

LA Mayor Eric Garcetti