Now and then: '60s and '70s rockers

POSTED: 11:21 PM PDT Sep 22, 2011    UPDATED: 11:00 PM PDT May 05, 2015 
Bob Seger, March 2013

With Bob Seger celebrating his 70th birthday Wednesday, see how he and other rockers from the 1960s and 1970s have aged over the years.