Louis Smith hopes 'Tumble' will show that gymnasts are characters with a fun personality.
The Olympian has signed up to be a judge on the BBC One programme and he is keen for the series to show that "gymnasts can have a laugh too".
The 25-year-old star told BANG Showbiz: "It's frustrating when you've got a different side to you and people always see you doing the same interviews and being asked the same questions, 'How do you feel about the Olympics?' How's training going?'
"You feel like you've been moulded into this respectable kind of person. This is an opportunity to show the other side of sportsmen. We can have a laugh and enjoy ourselves too."
Louis admits he will not be a soft touch when his is giving critiques to the performers, but he is going to make sure he gives them positive feedback too.
He said: "The fact that I'm still training and competing means I'm going to be honest and straight down the line.
"I'm not just going to be like, 'That was a disaster,' and leave it at that. I'll have to give the celebrities some positive feedback."
'Tumble', which is set to feature former Girls Aloud singer Sarah Harding and ex-'The Only Way is Essex' beauty Lucy Mecklenburgh among other celebrities, begins on Saturday, August 9 at 6.30pm on BBC One.
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