Amanda Holden will take over presenting duties on This Morning while Holly Willoughby is on maternity leave.
From September, Britain's Got Talent judge Amanda will join Phillip Schofield on the show's famous sofa for four days a week, while Holly takes leave to welcome her third child.
Husband-and-wife duo Eamonn Holmes and Ruth Langsford will continue to present the programme on Fridays.
Amanda Holden with Holly Willoughby in 2012
Mother-of-two Amanda, 43, has said she is ready and raring to get started on her new presenting project.
"I'm over the moon to get the chance to present one of my favourite shows on TV," she said. "I'm thrilled to be keeping Holly's seat on the sofa warm when she goes off on maternity leave.
"I have always been a huge fan of This Morning and love presenting with Phillip so I really can't wait to get started."
— Phillip Schofield (@Schofe) July 11, 2014
And then gorgeous @clbleakley steps in to play for the rest of it. How lucky am I to work with the best ladies on telly 😃— Phillip Schofield (@Schofe) July 11, 2014
This Morning host Phillip Schofield tweeted his excitement at the news
Holly Willoughby and Phillip Schofield
Fellow presenter Ruth also tweeted her enthusiasm about Amanda's appointment.