5. Britney Spears: In February, 2007 Britney Spears shaved off her trademark hair at a Los Angeles tattoo parlour. The pop-tart, who was in full view of fans and paparazzi, had reportedly checked in and out of an Antigua based rehabilitation centre earlier on that week. Spears checked herself in and out of Promises Rehabilitation Clinic in Malibu but is still one of the biggest celebrity trainwrecks to date.















