Ronan Keating and his wife Yvonne
Boyzone star Ronan Keating has confirmed his marriage is over – and his divorce could cost him $20million.

Keating confirmed via Twitter that his 14-year marriage to model Yvonne has ended.

The relationship has been rocky since 2010 revelations of the singer’s affair with a dancer.

The 35-year-old Keating tweeted: “Sadly our news is true. Thank u all for your support. Yvonne and I still love and care for each other and want to protect our kids. X.”

Yvonne had earlier tweeted: “Sadly, our marriage ended late last year. We kept this news private to give everybody involved time to adjust. Thank you for your support x.”

Currently working as a judge on the X Factor in Australia, Keating is expected to move down under permanently.

Divorce experts say the split will cost the singer at least half his $40million fortune.

Friends have spoken in the Irish media of their shock at the news.

Music producer Bill Hughes said: “I met Ronan and Yvonne in La Stampa on Christmas Eve together and they were in the best of form.

“I'm really sad because Ronan and Yvonne were terrific together.”