The 33rd annual Harmony Festival will return to Santa Rosa, CA’s Sonoma Country Fairgrounds from June 10-12. Primus, Michael Franti & Spearhead, The Flaming Lips, Grace Potter & The Nocturnals, Edward Sharpe & The Magnetic Zeros, G. Love & Special Sauce, Railroad Earth, Ghostland Observatory, Krishna Das With Natacha Atlas And Tiraline, SOJA and Rootz Underground are among the acts scheduled to appear. A Tribute To Jerry Garcia also will take place featuring Jesse McReynolds, Moonalice And The David Nelson Band. As always, Harmony Festival has confirmed a number of speakers, such as: Mike Farrell, Mariel Hemingway & Bobby Williams, John Robbins with Ocean Robbins, Will Durst, Caroline Casey and The Yes Men. Themed tents and areas such as The Eco Rally Action Sports Zone also will return, with the full details at the Harmony Festival site.