Who were Niall Horan judges for the x factor?

Niall Horan served as a judge on "The X Factor" UK during its 2015 season. He was part of a panel that included Simon Cowell, Cheryl Fernandez-Versini, and Nick Grimshaw. Niall's experience as a member of One Direction provided him with unique insights into the music industry, which he shared while mentoring contestants. His involvement was well-received by fans and added a fresh perspective to the judging panel.