According to In Touch Weekly and me, Britney Spears is a bitch. During a recent phone conversation with soon-to-be-ex Kevin Federline, Britney asked him if he'd seen the pictures of her kissing J.R. Rotem:

"It was really bad," an "eyewitness source" told the mag, adding that Spears also started bragging to her ex about some sex she'd had. Federline was furious, although he reportedly isn't quite sure whether he believes that she's been dating. "[Spears] just started pushing his buttons. ... He started screaming at her."

Spears is reportedly also taunting Federline about no longer living the lavish life they shared, but sources say that he continues to gather info on her hard partying to use in the custody battle against her.

It's almost like Britney wants us to root against her. Two months ago, I didn't think I could ever take K-Fed's side in anything. But after a month of Britney acting like Hollywood's version of Andrea Yates, I hope he wins custody of the kids. Let that sink in for a second, I'M TAKING K-FED'S SIDE. This may be the most incredidble switching of loyalties since I started rooting for the Germans towards the tail end of World War II, what with their cute uniforms, funny accents, and little button noses.