Members of Chickenfoot, Night Ranger and Mr. Big will appear during a special sold-out benefit concert for Sammy Hagar's drummer, David Lauser, whose wife is battling a deadly form of cancer.

Hagar (and the Wabos), Joe Satriani and Michael Anthony, who make up Chickenfoot with drummer Chad Smith, will be joined by Kenny Aronoff (who tours with Chickenfoot when Smith is too busy with his full-time band, the Red Hot Chili Peppers), Jack Blades from Night Ranger and Billy Sheehan from Mr. Big at the event, which will be held on Feb. 12 at the Sweetwater Music Hall in Mill Valley, Calif.

Liza Cozad-Lauser, wife of Hagar's longtime sideman, has been diagnosed with terminal cancer of her brain stem. The couple is hoping for FDA-approved access to treatment that could save her life.

Tickets sold out in a matter of hours. But organizers say the concert will be available for viewing online. You can find more information here.