The Westlife singer has become the third confirmed participant of the latest series, after Daybreak's Richard Arnold and Tracy Beaker star Dani Harmer.
"It's true Nicky Byrne is our next Strictly Celebrity!," the official BBC Twitter feed announced earlier this evening (September 7).
Byrne had been among a host of celebrities rumoured for a spot in the lineup in recent weeks.
Team GB athletes Louis Smith, Victoria Pendleton and Beth Tweddle have been among other celebrities linked to the show.
Strictly's launch show will air on Saturday, September 15 on BBC One. Watch a trailer below:
Strictly lineup 2012 - Rumoured celebrities in pictures:
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