The 53-year-old star, who has been confirmed as the eighth contestant, said that he is nervous despite his many years in show-business, reported BBC.
"It's really happening. I can put a few steps together, but can I dance to the level I need to dance? Well, that's a whole other ball game," he said.
The other contestants who are confirmed so far are; Peter Andre, Carol Kirkwood, Katie Derham, Georgia May Foote, Kellie Bright, Ainsley Harriott and Jeremy Vine.
The 13th series of the celebrity dance reality show will air on BBC One in September 2015.