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 7 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.