Dermot O'Leary is set to guest host This Morning on ITV in January.
The X Factor presenter is filling in for Phillip Schofield on the show, and will co-present with Holly Willoughby for a week.
Schofield is taking a leave of absence from his This Morning presenting duties from January 13 to 16 to film the latest series of The Cube.
O'Leary said of his new gig: "I'm delighted to be guest hosting This Morning for a week. When Holly called me and asked, I couldn't resist, I really miss working with her, and am looking forward to having some fun."
He added: "I'm a huge admirer of Phillip, so to be asked to stand in for the great man is indeed an honour - I can't wait!"
O'Leary and Willoughby previously worked together on The X Factor when she hosted The Xtra Factor.
Dermot O'Leary is also hosting the 2014 National Television Awards on January 22.