Rock on, dude!
Jack Black, lead singer of Tenacious D, took to the stage at the Grove in El Lay and let his vocal chords wail to raise awareness for autism.
He rocked out with Stephen Stills from Crosby, Stills, and Nash during the Austism Is Awesomism concert on Tuesday which benefited The Miracle Project.
The free concert was filmed ABC's upcoming show Everyday Health and featured autistic 16-year-old Wyatt Isaacs, the star of HBO’s Emmy-winning documentary, AUTISM: The Musical.
Check out more pics of Jack Black below, then click here to find out more about Wyatt and his awesomism organization!
[Image via FayesVision/WENN.]