A global music star who is an ambassador of an anti-violence charity founded by King Charles has been filmed slapping and assaulting a band member. The shocking footage shows Pakistani folk singer Rahat Fateh Ali Khan – an ambassador for the King's British Asian Trust which tackles domestic violence – attacking a backing singer on a US tour. Khan, 49, who has eight million followers on social media, rained blows on the man with a slipper and dragged him around by his hair during the brutal attack at a hotel in Houston, Texas, last year. Last night he admitted the...