Britney Spears spent the weekend battling her demons at Promises Treatment Center in Malibu amid reports that she's wavering in her treatment.
Some, such as London's News of the World, have even suggested that Britney has written "666" on her forehead, is now referring to herself as the anti-Christ and is contemplating suicide. We're guessing that's a tad extreme, and the pop star is merely battling depression and addiction.
Her cousin, Alli, was on hand to offer support, staying overnight on Friday and dropping by for visits on Saturday and Sunday afternoons.
The 25-year-old singer left the facility to visit a friend's apartment in Culver City Thursday to pick up a bag of new clothes that were purchased for her from the boutique Intuition, and attended an AA meeting off-site. But she's been on the premises ever since.
Nevertheless, a source says that the Spears family - namely mom Lynne and sister Jamie Lynn Spears - is worried about Britney's progress in rehab.
"They hope that Britney will stay at Promises for a month, but they're nervous she might not last that long," an insider said.
Meanwhile, Britney's estranged husband, Kevin Federline, traveled to Las Vegas for an appearance at Revolution in The Mirage Hotel & Casino.
Sporting a shaved head that matches that of his newly shorn wife, Federline arrived at the club at 12:15 a.m. The group, including Federline's brother, Chris, his wife and several friends, drank while K-Fed smoked and did a shot as the DJ played several of his songs.
Spies say K-Fed was on his best behavior, flirting with a waitress or two and posing for pictures with the club's dancers, but making sure not to spend too much time with the ladies.
At 3:45 a.m., FedEx & Company gathered their belongings and disappeared into the night. We can only imagine the whole gang rolled over to Antonella Barba's luxury suite. Just kidding.