'X Factor' boss Simon Cowell is relying on his ex-fiancee Mezhgan Hussainy for moral support following the slump in ratings for his talent show 'The X Factor'.

Simon Cowell has been on a date with his ex-fiancee Mezhgan Hussainy.

The 52-year-old music mogul - who called off his engagement to the glamorous make-up artist in January - is reportedly seeking moral support from his former flame following the slump in 'The X Factor' UK ratings.

The pair were spotted arriving at the Beverly Hills Hilton in Los Angeles arm-in-arm and a source close to Simon told The Sun newspaper they were attending a "promotional event for the US 'X Factor'."

The source added: "They've always been close and remain on good terms."

Simon and Mezhgan split when the brunette got sick of his competitive nature and failure to set a date for their wedding. He famously gave her a £5million mansion in Beverly Hills in compensation for being "a hopeless boyfriend".

The music mogul is said to be worried after ratings for his UK show slumped to an average of just 7.4 million on Saturday (08.09.12), a drop of 3 million since this time last year.

The show's US counterpart could also be in trouble as rival singing competition 'The Voice' is set to go head-to-head for ratings in the same time slot.

Simon branded the decision "silly games", fuming: "It cheats the viewers. It's not going to get resolved, it is what it is.

"My opinion is that they have done this because they don't want people to watch 'The X Factor'. Do you know what? I think it could backfire on them"