Robbiewilliams_6 The Sun reported today that Robbie Williams has "pulled a Britney" and ditched his last week of rehab. Robbie entered rehab on February 13, his 33rd birthday, at the £700 a-night Cottonwood de Tucson, which is one of the harshest centres in America. Although Robbie's camp claims that he's completed his therapy, a source close to the centres says, "Robbie was meant to be here for four weeks but left after three." It's rumoured he'll be receiving care at another rehab facility in LA, and isn't just "giving up". Hey! Maybe he and Britney can get treatment together and work on a duet! That would be awesome!