Wavy Gravy turns 72 this May and once again the self-proclaimed hippie icon, flower geaser has recruited a number of heavy hitters for his birthday celebration. The event will take place at Mill Valley, CAs 142 Throckmorton Theatre on May 15, featuring performances by Jonathan Richman, David Nelson, Ramblin Jack Elliot, Emory Joseph & Woody Vermeire and an all-star version of Moonalice boasting special guests Mickey Hart and Barry Melton. Wavy Gravy will also be on hand with his own the Clown Conspiracy and, judging by past years, at at least a few surprise performers are also likely on the guest list. The festivities will benefit Wavy Gravys Camp Winnarainbow , a circus and performing arts camp run by Wavy Gravy and his wife Jahanara Romney, and the Grace & Joy Scholarship Fund, which allows economically challenged children to attend the camp.