Bob Weir and Mickey Hart will headline Wavy Gravy’s 75th Birthday Boogie. The benefit show will take place at Richmond, CA’s Craneway Pavilion on May 14. As in years past, the show will support the Seva Foundation. The Grateful Dead members will be joined during their set by Barry Sless, Bobby Vega, Henry Kaiser, John Molo, Nicki Bluhm, Pete Sears and Steve Kimock as well as RatDog’s Jeff Chimenti, Mark Karan and Robin Sylvester. In addition, the show will feature sets by Zero, The Chris Robinson Brotherhood, Hot Buttered Rum, Ace of Cups and Clown Conspiracy. Wavy Gravy will host the night.