One night, nine outfits: J Lo's epic, body-baring AMAs costume marathon

Jennifer Lopez must be exhausted this morning. Last night the 46-year-old mother of two gave a stomping performance at the American Music Awards which included a dance routine that would make even Beyonce wheeze, compered the show and managed to get changed nine times in the process. Just the thought is enough to make us break out in a mild panic sweat and contemplate an under-desk nap.