Joan Rivers isn't known for pulling punches when it concerns her fellow celebrities, so it should come as no surprise that she roasts over a hundred of them in "Diary of a Mad Diva."
In Rivers' latest book, the legendary comic gives fans a glimpse at her day-to-day thoughts — along with all the crass musings and off-color barbs you've come to expect from one of Hollywood's foremost queens of comedy.
"If I want to make a joke [about a celebrity], I make a joke about them," Rivers told FOX entertainment correspondent Michael Tammero in a recent In The FOXlight interview. "I say you're lucky to have a joke made about you, because if America doesn't know who you are, they're not going to get the joke. So I only put down people who are very, very famous."
And with upcoming tours and a steady gig hosting "Fashion Police," the 81-year-old comedian shows no signs of slowing down.
"I love the business. I can't get enough," she remarked. "I can do writing, I can perform, then I have shows, [and] I'm producing. It's fabulous."
Hear Joan's full interview in the video above, and be sure to pick up "Diary of a Mad Diva" at bookstores everywhere.