By Alan Johnson As this year’s series of I’m A Celebrity… Get Me Out Of Here! draws to a close, some of its stars have undergone quite a transformation during their time in the jungle. Marvin Humes was the latest contestant to highlight the effects of appearing on the ITV show after the 38-year-old JLS star was given the boot by viewers on Friday. The singer was seen relaxing with his wife, Rochelle Humes, on his return to the plush five-star JW Marriott Gold Coast Resort and Spa soon afterwards, as the This Morning presenter hailed his newfound physique. Sharing a snap of his toned body on …