Is Ed Sheeran really going to write the X Factor winner's single?

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Every Christmas, without fail, the winner of The X Factor will attempt to top the charts over the festive period, usually with a cover version of a popular (or not so popular) song.

But this year, according to reports, bosses are hoping to shake things up as award-winning singer-songwriter Ed Sheeran is set to write the winner's single.

This follows last year's champion Louisa Johnson's effort, a cover of Bob Dylan's Forever Young, which only peaked at number nine in the charts.

Ed Sheeran
Ed Sheeran (Rich Fury/AP)

A source told The Sun: "Everything Ed does turns to gold. To have him write the winner's song is huge and amazing news for this year's winner.

"All the remaining contestants have heard the track and it works for the majority.

"They can't believe potentially their first ever single will be written by Ed."

However, the insider has said that if either Honey G or boy band 5 After Midnight win, the song perhaps won't work for them.

The source added: "The only chance his song won't get used is if 5 After Midnight or Honey G pull off a shock win. Then bosses might need to consider another one of their options."

The track is believed to be typically Ed, an acoustic ballad-style song.

Simon Cowell
Simon Cowell (Syco/Thames/Burmiston/PA)

Since Simon Cowell's singing talent show kicked off 12 years ago, every single winner - bar Louisa - has topped the charts with their single.

According to the Official Charts Company, the three biggest sellers were Shayne Ward's That's My Goal - an original song - in 2005 with 1.11 million sold, James Arthur's Impossible in 2012 with 1.294 million copies sold and Alexandra Burke's Hallelujah in 2008, which racked up sales of 1.297 million copies.