This week, we told you how Mark was in talks with the producers of the show but said he'd yet to make a decision but now, it's all go, go, go.
Making the announcement on his radio show, the former TOWIE star said he'd be putting on his dancing shoes and aiming high in the competition for the coveted glitter ball trophy.
READ: MARK TALKS ABOUT HIS UPCOMING WEDDING TO MICHELLE KEEGAN
Dancing alongside Mark are Thom Evans, Alison Hammond, Simon Webbe, Judy Murray and the Saturday's Frankie Sandford.
We cannot wait to watch Mark shake his thang on the dancefloor.
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