The former X Factor star and Sugababe will be joined by last year's winner Sam Attwater when the arena tour kicks off in April with Christopher Dean and Jayne Torvill and the helm.
At least five other skaters from the current series are expected to join the trio already confirmed.
The tour will start in Newcastle before moving to venues in London, Nottingham, Sheffield, Manchester and Liverpool before concluding in Glasgow in May.
Previous shows have raised over £100,000 for charity, with audience members given the chance to vote for their favourite pair via text to take part in a special final skate at every event.
Tickets for the Dancing On Ice live tour are on sale now.