The X-Factor star Louis Walsh has taken an astonishing swipe at "has-been" Simon Cowell in an eye-opening rant to The Sun.

The former X Factor star is a guest judge for auditions on the ITV show, but Simon Cowell hinted she could make a return in the live shows.

Louisa Johnson - who won The X Factor UK in 2015 - has shared her new festive ballad Follow the Stars, an intimate Christmas release co-written with Jack Edwards and GRAMMY-winning songwriter Toby Gad ...