24. Jeff Ross

The Buzz -- Jeff Ross's blistering performances at celebrity roasts honoring mega stars like Joan Rivers, Hugh Hefner, Pamela Anderson, Donald Trump, Jerry Stiller, Drew Carey, and Shaquille O'Neal inspired New York Magazine to crown him "The Meanest Man in Comedy" - and MTV to introduce him as..."A One-Man Verbal Assault Unit".Ross’s first book, “I Only Roast The Ones I Love: Busting Balls Without Burning Bridges” by Simon Spotlight Entertainment, a division of Simon & Schuster, hits bookshelves across the country September 2009