Celebrating 30 years of new ideas, community activism, eco-awareness, spiritual wisdom, holistic health products, conscious art, and transformative music, this year's Anniversary festival features Damian Marley, George Clinton, Mickey Hart, Paula Cole, Angelique Kidjo, and dozens of other notable performers, artists and speakers to celebrate 30 years of new ideas, community activism, eco-awareness, spiritual wisdom, visionary art, and conscious music. A world class music and lifestyle festival that is truly "a party with a purpose" with environmental and health oriented interactive workshops, dynamic kids zone, on-site Readers' Books bookstore, over 300 vendors and exhibitors, and of course, Harmony After Dark. The festival will also plant one tree in Ethiopia for each ticket sold through its new partnership with Trees for the Future and will institute an event-wide greening program that includes the use of bio-degradable cups, plates and utensils, and alternative energy powered stages and attractions. Tickets are available now at www.harmonyfestival.com and at dozens of vendors throughout the bay area (see complete list of ticket outlets on site). Kids age 12 and under are FREE. Check web site for performance schedules.