Actor Tim Robbins, right, and son Miles Robbins perform at a benefit concert celebrating Pete Seeger's 90th birthday at Madison Square Garden on Sunday, May 3, 2009 in New York. AP Photo logo AP Photo 7 months ago

Actor Tim Robbins, right, and son Miles Robbins perform at a benefit concert celebrating Pete Seeger's 90th birthday at Madison Square Garden on Sunday, May 3, 2009 in New York.