Not that kind of coke... I'm talking about Coca Cola. Star Magazine is reporting that Britney Spears is drinking 24 cans of coke a day while in rehab. Holy calories! She is going to gain a lot of weight. Forget about the soda! Staff at Promises (those secret keepers) are saying that Britney has had a terrible attitude during her stay. Here is more:

"Britney has a seriously bad attitude problem," an "insider" tells Star. "She's been very demanding; acts like a 12-year-old and throws temper tantrums when she doesn't get what she wants! "She refuses to pick up after herself and even asked if she could hire a maid!" adds the source. "She's asking for this and that, special food, special everything ... and she's not that nice to anyone."

It's likely that Spears is acting out, reports that mag, because she feels she doesn't belong in rehab in the first place. "I heard she keeps saying she is just sick from postpartum depression and that she does not have any real addiction problem, which is a joke," the source tells the mag. "She has an addiction."