Metallica‘s James Hetfield officially returned to the stage last night (February 20) after previously entering rehab for alcoholism. The frontman performed an acoustic cover of Eddie Money‘s “Baby Hold On” during a tribute concert for the late singer at the Saban in Beverly Hills, CA. The concert, which was called “A Star-Studded Tribute To Eddie Money,” also featured Sammy Hagar, Rick Springfield, etc. and the proceeds from it went towards the “USC Eddie Money Cancer Research Fund.”