The athletes will pair up with professional partners on Friday 21 March for the charity fundraiser with a group dance challenge.
Gary Lineker, Gabby Logan, Claudia Winkleman, Jack Whitehall and Clare Balding will be among the presenters on the night.
Meanwhile, the ballroom show's 2013 champ, Abbey Clancy, will be performing at the National Television Awards on Wednesday.
The awards, to be hosted by 'X Factor' presenter Dermot O’Leary, will see Abbey dance with 'Strictly' judges Craig Revel Horwood and Bruno Tonioli, The Sun reports.
“And Bruno and Craig are always up for a laugh so they didn’t need much persuading.”