Tune in to Sport Relief on BBC One tomorrow night from 19:00 GMT to watch Robbie join hosts Christine Bleakley, Gary Lineker, Claudia Winkleman and Richard Hammond for the fundraising spectacular of the year.
He will be performing the official Sport Relief single, Morning Sun, live on the show, plus there are star performances from Cheryl Cole, JLS and Lemar on the night too… so get those Friday night dancing shoes on.
Sport Relief will also include hilarious special episodes of Gavin and Stacey, Dragon's Den, Strictly Come Dancing, A Question of Sport, Match of the Day and much more, as the night tries to top the £28 million raised in 2008.
All money raised from Sport Relief goes towards helping vulnerable people in the UK and across the world's poorest countries and you can make the difference by donating to Sport Relief here, calling 03457 910 910 (standard geographic charges from landlines and mobiles will apply) or by pressing the interactive Red Button during the TV show tomorrow.
Morning Sun: The official Sport Relief single
All record company profits and artist royalties from digital UK sales go to Sport Relief, as well as all publishing income. Show your support for the charity and click here to buy your copy of Morning Sun.