Forever young: Senior celebs still working

POSTED: 07:08 AM PDT Apr 06, 2012    UPDATED: 11:00 PM PDT Jun 21, 2016 
Kris Kristofferson, December 2015

Let's take a look at some celebrities over the age of 65 for whom retirement is a dirty word, including Kris Kristofferson, who celebrates his 80th birthday on Wednesday.