Photos

Bruce Springsteen, Tom Morello, Joan Baez, Dave Matthews, Warren Haynes and Pete Seeger, from left, perform at the Clearwater Concert, a benefit show in honor of Pete Seeger's 90th birthday. The concert was held at Madison Square Garden in New York on May 3, 2009. All proceeds ... morewere to benefit Hudson River Sloop Clearwater Inc., which aims to preserve and protect the Hudson River.

(RD/Dziekan/Retna Digital)