Rylan Clark-Neal is reliving his X Factor days as he takes on a singing marathon.
Presenter Rylan Clark-Neal is taking on his biggest challenge to date. A 24-hour kar-RY-oke challenge to raise money for Children in Need.
The challenge follows a 24-hour danceathon done by Tess Daly and Claudia Winkleman for Comic Relief last year.
BBC News caught up with him to find out what he's most nervous about.