Matt Johnson has said he'd love to host the Xtra Factor this year.
Sarah said: "Xtra Factor has been amazing, however I have a new project coming up this summer. And with all the changes happening, I won't be back.
"Wishing the new team the best of luck, I can't wait to watch you all."
With a spot now open on the show, telly presenter Matt has been quick to throw his hat into the ring.
"Presenting that show is something I'd be really interested in - if I'm him and cool enough!" he told Star magazine this month.
And X Factor fan Matt admitted that he'll miss Dermot O'Leary this year after he was replaced on the main show by Caroline Flack and Olly Murs.
"I'll miss him on the show, he makes it seem effortless," Matt added.
A new host for The Xtra Factor is set to be announced in due course.