Phil Collins has admitted to being unfaithful on his second wife Jill Tavelman and says he has deep regrets about the way his marriage ended.

The 65-year-old singer has revealed that he cheated on his ex-partner and mother of their daughter, Lily Collins, and claimed he was just ''following [his] heart.''

Speaking to Australian news programme Sunday Night, the former Genesis drummer and vocalist said: ''I was following my heart. But it turned out I was being a bit of a b*****d.''

 Phil Collins, his daughter Lily Collins and her mum Jill Tavelman at the premiere of Mirror Mirror in 2012

Collins, who has famously paid over $50 million in divorce settlements, has been married three times - to Andrea Bertorelli from 1975 to 1980, Tavelman from 1984 to 1996, and Orianne Cevey from 1999-2008. He rekindled his relationship with Orianne last year.

''I'm back with my third wife now, which people find strange. But to me, it's wonderful.

''We got divorced ... I paid her a lot of money. But that's divorce, you know. We realised it was a mistake and now we're back together and everything's great.''

Phil rekindled his romance with his third wife Orianne Cevey last year

The musician also opened up about his failed marriages in his new autobiography Not Dead Yet, in which he reveals he's ''disappointed'' in himself for having been divorced three times.

''While three divorces might seem to suggest a casual attitude towards the whole idea of marriage, this couldn't be further from the truth.

''I'm a romantic who believes, hopes, that the union of marriage is something to cherish and last.

''Yet certainly that trio of divorces demonstrates a failure to co-exist happily and to understand my partners.

''It suggests a failure to become and stay, a family. It shows failure, full stop.''

Phil Collins is currently promoting his new book Not Dead Yet