Troubled British pop star Robbie Williams has been branded a "drama queen" by his former manager just hours after entering rehab for a dependency on prescription drugs. The FEEL singer was admitted to a clinic in the US yesterday (13FEB07), on his 33rd birthday, according to his spokeswoman BRYONY WATTS. But former manager NIGEL MARTIN-SMITH, who had control of Williams career as a member of boy band Take That, doesn't sympathise with the star's problems at all. He says, "He's very theatrical. His whole life is one huge soap opera. "He might be after a bit of sympathy. "If I was a Robbie fan I wouldn't be worried. He'll go to his rehab, have a lie-down and a couple of Anadins (painkillers) and he'll be fine." Martin-Smith is currently embroiled in a bitter legal wrangle with Williams over allegedly defamatory lyrics on a song from his latest album RUDEBOX.