Troubled Britney Spears was so worried she'd lose custody of her sons to her estranged husband she attempted to end her life after shaving her hair off last week (16FEB07), according to US reports. The TOXIC singer reportedly flew into a muddled rage after family and friends, including husband Kevin Federline, attempted to convince her to get help for her wild ways. And after famously shaving off all her hair at a Tarzana, California salon, The pop superstar attempted suicide by walking into oncoming traffic. Sources tell US tabloid the National Enquirer Spears felt Federline's warning was a threat to seek custody of their baby sons and went into hysterics. After her extreme haircut, Spears was taken home by family members and friends were told to keep watch on the troubled star. A source says, "Sometime during the night, she escaped and tried to walk into oncoming traffic before her staff could pull her to safety. "Clearly, she wanted to end her life. Her family immediately put her on suicide watch." Spears checked into Malibu, California rehab facility Promises on Wednesday night (21FEB07) after two failed attempts in the past week to seek counselling for her ongoing problems fell through.