LATEST: Britney Spears' first husband Jason Alexander fears the pop superstar will end up like late actress/model Anna Nicole Smith if she doesn't curb her wild lifestyle. The TOXIC singer - who stunned fans when she shaved off her locks last week (16FEB07) - checked into the Promises treatment centre in Malibu, California on Wednesday night (21FEB07) after two failed attempts in the past week to seek counselling for her ongoing problems. And Alexander, whose brief marriage to the 25-year-old was annulled 55 hours after tying the knot in Las Vegas, Nevada in January 2004, is worried she will follow tragic Smith to an early grave if she doesn't complete her latest spell in rehab. He says, "It freaked me out when I saw she had shaved off her hair - that was clearly a cry for help. The pictures have become increasingly disturbing. I have never said anything about Britney and drugs before but I am very, very concerned about her. I am really worried that she will wind up like Anna Nicole Smith and be found dead." Alexander also thinks Spears needs to re-examine her life and go back to her Louisiana roots. He adds, "She needs to knock herself down from the pedestal she thinks she is on and remember that she's just an old country girl. She needs a break from Hollywood. Her problem is she doesn't feel anyone wants her for herself - only for who she is. Smith died at the Seminole Hard Rock Hotel + Casino in Hollywood, Florida on 8 February (07) at the age of 39. The cause of her death is still under investigation.