On May 15th, Metallica frontman James Hetfield and vocalist Sammy Hagar (Van Halen, Chickenfoot) held their Acoustic-4-A-Cure concert at The Fillmore in San Francisco, California.

Says Sammy Hagar: “I sincerely want to thank everyone for their participation in this year's Acoustic-4-A-Cure, we hit it right one the mark again. Together, we helped give a lot of children a better chance at a long life and we had a blast doing it! It doesn't get any better than that. James and I will have our hands full trying to top this one next year. Thank you, thank you all."

The event saw Hetfield perform acoustic versions of two Metallica songs: "Motorbreath" and "The Unforgiven". He also offered up a cover of the Screamin' Jay Hawkins tune "I Put A Spell On You". Check out fan-filmed video below.

The third annual Acoustic-4-A-Cure concert benefiting the Pediatric Cancer Program at UCSF Benioff Children's Hospital also featured appearances by: Joe Satriani, Melissa Etheridge, John Mayer, Train frontman Pat Monahan, Vic Johnson and Kris Kristofferson.

Acoustic-4-A-Cure was created by Hagar and Hetfield, whose vision was to raise needed funds and awareness for the Pediatric Cancer Program at UCSF by bringing together some of their legendary friends and throwing a must-see concert for fans. In past years, artists including: Billie Joe Armstrong, Jerry Cantrell, Pat Monahan, Linda Perry, Chad Smith, Adam Sandler, Joe Satriani, Nancy Wilson, and more have joined Hagar and Hetfield to rock the sold-out benefit concerts.