You won't believe the list of the 20 most-hated celebs in Hollywood! Starting at number 20 is Chris Brown. But apparently celeb-watchers hate a few other dudes even more. Like serial cheater Jesse James and serial dater John Mayer. Taylor Swift, Kris Jenner and Kim Kardashian, Madonna and Kristen Stewart weren't too surprising. And Anne Hathaway was pretty predictable. But the number one slot on the list of most-hated celebs goes to Gwyneth Paltrow. Guess being fit and fab at 40 rubs a lot of people the wrong way.