Holy rock 'n' roll, is that Joan Jett? That was the question everyone was asking themselves recently when the rocker was in New York's Union Square handing out copies of PETA's vegetarian/vegan starter kit.

Jett has been a vegetarian for almost 20 years and admits to PopEater that she could not "see the distinction between a pig and a cow or my dog." Now, she's urging others to think about their health before they chomp into another hamburger.

Jett spoke with PopEater about her latest campaign and Joan Jett & The Blackhearts' upcoming tour with Green Day. Watch:

Joan Jett Doesn't Want You to Eat Meat