| Levon Helm Band, Jefferson Starship and Country Joe McDonald are among the acts that will descend on Bethel, New York, on August 15th to celebrate the 40th anniversary of the Woodstock Festival, Billboard.biz reports. Mountain, Ten Years After, Canned Heat and Big Brother and the Holding Co. will also play the Bethel Woods Center for the Arts, a venue built on the site of the original Woodstock, which ran from August 15th-17th, 1969. Helm appeared at the 1969 fest with the Band, while Jefferson |