Louis Tomlinson to Join Simon Cowell on X Factor to help mentor contestants.

The former X Factor contestant will return to help Judge Simon Cowell.

Louis Tomlinson creating girl group with mentor Simon Cowell

He'll mentor him to be a mentor' Simon Cowell to coach 1D Louis to replace X Factor Walsh - Daily Star

Louis Tomlinson Joins the 'X Factor UK' 2018 Judges Panel!: Photo 4115779, Ayda Field, Louis Tomlinson, Robbie Williams, Simon Cowell, X Factor Photos

Simon Cowell 'signs up One Direction's Louis Tomlinson as X Factor mentor

Simon Cowell Feels Like a Father Figure to Louis Tomlinson

Simon Cowell Feels Like a Father Figure to Louis Tomlinson

Louis Tomlinson makes X Factor return to help Simon Cowell during Judges' Houses - Mirror Online

Simon Cowell gobsmacked as Louis Tomlinson hits back over X Factor songs

Simon Cowell Reacts to Harry Styles' Brilliant Grammy Nominations

Simon Cowell Would Revive 'The X Factor US' to Find 'Great Groups

X Factor mentor rows - from Simon and Louis Tomlinson to Cheryl and Cher Lloyd - Mirror Online

X Factor 2018: Simon Cowell gifts Louis Tomlinson with his original application, TV & Radio, Showbiz & TV