The TV presenter's daughter Zoe competed on the show in 2005 and last year took over from Claudia Winkleman as the host of It Takes Two and returns this year.
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Asked if he would get any preferential treatment, Johnny told Metro: "Absolutely not. She didn't know I was doing it until two days before the lineup was announced.
"They wanted to have a camera there when they told her I was doing it but it never happened. I don't want anyone to have the idea Zoe said, 'Please have my dad', because that didn't happen."
Of whether Zoe had given him any tips, he added: "Not with the dancing. She's just told me to enjoy it and go with the flow.
"Everyone who's gone on before comes out the other end saying it's a fantastic experience."
Johnny's professional dance partner Aliona Vilani has suffered an ankle injury which will force her out of the first live show.
Strictly Come Dancing: Couples - photo gallery
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