Everyones favourite Christmas carol singer Mariah Carey showed off her stunning post-baby figure outside the Dorchester hotel in London on Saturday December 10th. Grammy award winner and wife of Nick Cannon arrived at The Dorchester hotel wearing all black. She posed for the paparazzi and signed autographs for loyal lambs who waited outside for hours to catch a glipse of Mimi. Rumors has it that Mariah Cannon Carey is in town to perform her new material seasonal classic All I Want for Christmas on tonight’s “X Factor.” finale. Check out more images of Mariah Carey rocking thigh high boots at the Dorchester Hotel after the jump.