Almost a decade after their victory at the British casting show The X Factor, Rak-Su's members look back on one of the most influential phases of their career. Watford's R&B group won the show in 2017 – supervised by TV judge and music producer Simon Cowell (66). vis-à-vis Mirror, band member Ashley Fongho now exclaims about how the collaboration with the well-known strict juror really was: "I don't have a bad word about him. He appreciated that…