Article continues below advertisementKathy Griffin gave some insight into late friend Joan Rivers' life under the knife. Rivers, who died in 2014 at the age of 81, was known for her hard fashion critique and her passion for getting plastic surgery.The comedian, 65, appeared on the "Good Guys" podcast on November 10 and revealed why she thinks Rivers often underwent cosmetic operations."I actually think when you're a chick comedian, they just go for your looks," Griffin told hosts Josh Peck and Ben Soffer.