Listen to Fifth Harmony’s All I Want for Christmas Is You cover! Those Fifth Harmony girls have gone and done an amazing cover of Mariah Carey’s Christmas hit! Latest Pop News Fun Kids is the UK’s children’s radio station Tune in on DAB Digital Radio in London and the South East, on mobile and online at funkidslive.com Click here to listen! More to click... Fifth Harmony are coming back to the UK on tour! QUIZ: How much of a Fifth Harmony fan are you? Watch Fifth Harmony Sledgehammer official music video!