Actor Tim Robbins performs with Miles Robbins during a concert celebrating musician Pete Seeger's 90th birthday in New York May 3, 2009. The concert at Madison Square Garden has an all-star roster of performers with proceeds to benefit Hudson River Sloop Clearwater, a non-profit corporation founded by Seeger in 1966 to bring environmental attention to the Hudson River Valley. Reuters Pictures logo Reuters Pictures 33 months ago

Actor Tim Robbins performs with Miles Robbins during a concert celebrating musician Pete Seeger's 90th birthday in New York May 3, 2009. The concert at Madison Square Garden has an all-star roster of performers with proceeds to benefit Hudson River Sloop Clearwater, a non-profit corporation founded by Seeger in 1966 to bring environmental attention to the Hudson River Valley.