Report: Britney is boozing, binging, spending

Is Britney Spears already off the wagon?

The recently rehabbed star is having trouble staying away from the booze, and according to one report, thats not her only problem.

Spears is drinking heavily again, binge shopping and eating like theres no tomorrow, according to Star magazine. Whats more, the "Toxic" singer is jeopardizing her cherished relationship with kid sister Jamie Lynn because of her ongoing feud with her mother, Lynne.

On several occasions, I have seen her pouring alcohol into energy drink cans, a source told the tab. And, says one insider: Britney requests that her alcohol be served in carafes rather than in bottles. Once, a waitress made the mistake of bringing her a bottle.  Brit grabbed her arm and told her she couldnt be seen with it.

Spears reportedly caused a scene at the L.A. nightclub Joseph on June 25. The singer stripped down to a purple bra and was dancing and singing her own music, which she brought in, an observer told Star. She allegedly was also brazenly flirting with DJ Eric Cubiche, although his fiancée actress Jaime Pressley was nearby. The seething star of My Name Is Earl, who gave birth to Cubiche's son in May,  is said to have played it cool.

Spears is also said to have been on a major spending spree and is eating so much that her washboard abs are just a memory.

Then theres the strife with her family. Jamie Lynn and Britney have always been close, but Jamie Lynn thinks Britney is being cruel, especially after everything their mom did for her, a friend told the tab. Jamie Lynn wants it to stop.