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Earlier this month, it was reported that the Torchwood star had been lined up as a future replacement for Bruce Forsyth.
Speaking on This Morning about the claims, he said: "It is all a rumour and I don't have any information more... but I'm flattered. I think that Brucie is a TV icon, we all know him and I grew up with him before I went to the States... and if they were to ask me, and if Bruce were to offer those dancing shoes to me, I would gladly take them. It's an incredible thing.
"I'm telling you the truth, I know nothing about it. But it would be an incredible gig and it's an amazing show."
Of dancing on the upcoming Strictly Christmas special, he said: "After this interview, I'm going to get fitted for costumes - I can't wait! It'll be something understated, plain black, no bling... nothing outrageous, no sequins at all!
"People say to me, 'Well you sing, dance and you act, but I sing, I can act, but I can't really dance'. I'm a mover! This kind of dancing is different from any kind of dancing that I have done. You have to really focus on the steps and the footwork, everything.
"And I don't know who I'm partnered with yet... I'm quite nervous. And I don't know what dance I'm doing yet."
