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.

Simon Cowell says Louis Tomlinson can take time off from X Factor after sister's death - Mirror Online

Louis Tomlinson Proudly Supports Simon Cowell at Star Unveiling

X Factor 2019: Louis Tomlinson 'to quit' over All Stars series plans?, TV & Radio, Showbiz & TV

Louis Tomlinson has LEFT Simon Cowell's record label Syco following 'mutual agreement

X Factor stars who have spoken against Simon Cowell as Jedward hit out

Simon Cowell wants Robbie Williams, Ayda Field and Louis Tomlinson to remain on The X Factor for brand new celebrity and all-star versions

J-SOL brings tears to Louis Tomlinson's eyes with emotional song

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

Louis Tomlinson Got Help From Simon Cowell During a Pretty Scary Moment, Louis Tomlinson, One Direction, Simon Cowell

X Factor: Simon Cowell hints Louis Tomlinson could be his 'successor

X Factor 2018 judges confirmed as Robbie Williams, Ayda Field and Louis Tomlinson as they join Simon Cowell