[youtube]http://youtu.be/m9D525NA9FI[/youtube]

We already knew that Metallica could play acoustically, in fact, they did it earlier this week. But yesterday, frontman James Hetfield did it solo, enlisting a few friends for the final song. At San Francisco’s Fillmore for the “Acoustic-4-A-Cure” benefit, he came out for a four song set, opening with the band’s own “Nothing Else Matters,” then followed it up with his cover of The Beatles’ “In My Life,” which he did with the band earlier in the week. He followed that up with “Until it Sleeps,” then brought out Joe Satriani and Green Day frontman Billie Joe Armstrong to perform a cover/mash-up of Bob Seger’s “Turn the Page” and Green Day’s “Boulevard of Broken Dreams.”

The benefit concert also included Sammy Hagar, Train’s Pat Monahan and Heart’s Nancy Wilson, among others. Proceeds from the show went to the Pediatric Cancer Program at UCSF Benioff Children’s Hospital. Check out the other three songs below.

[youtube]http://youtu.be/FrSMm8tOp6U[/youtube]

[youtube]http://youtu.be/y0ZfzWLsbw4[/youtube]

[youtube]http://youtu.be/LaNJb2GqBuc[/youtube]