In 2018, returned for its 15th season , featuring a significant judging shake-up and a final win for Dalton Harris . 🏆 Season Winner & Standouts
: The former One Direction member mentored the "Boys" and became the first former contestant to mentor a winner ( Dalton Harris ) . Robbie Williams : Mentored the "Groups" category . The X Factor UK - Season 15
: The Jamaican singer was crowned the winner after delivering powerful performances like Prince's "Purple Rain" during the Six-Chair Challenge . In 2018, returned for its 15th season ,
: Major themes included "This Is Me" during the Live Shows , where contestants performed songs that defined them as artists . returned for its 15th season