X Factor viewers SLAM winner's Rak Su for 'miming' during their comeback performance

Rak-Su returned to X Factor on Sunday night  [ITV]X Factor fans were left fuming last night after Rak Su returned to the stage to perform their new single. The band, who won the 2017 series of the competition, made a triumphant comeback to the X Factor to show viewers what they'd been working on since they won. Despite impressing with their trademark dance moves, the band faced criticism from a number of viewers who accused them of miming to their new single ...