Forever young: Senior celebs still working

POSTED: 07:08 AM PDT Apr 06, 2012    UPDATED: 12:00 AM PST Jan 19, 2016 
Dolly Parton

Let's take a look at some celebrities over the age of 65 for whom retirement is a dirty word, including country music icon Dolly Parton, who celebrates her 70th birthday on Tuesday.