Former Boyzone singer Ronan Keating has revealed his regret at writing an autobiography at such a young age.

The 'When You Say Nothing At All' star penned his memoir, entitled 'Life Is A Rollercoaster', at the age of just 24-years-old and told Smooth Radio Book Club presenter Lynn Parsons that he would have had so much more to say if he had waited until now:

"Really that book was a little premature. I was a kid when I wrote that. I would have said don't - wait. I could write a hell of a book right now. I mean what's happened since, losing Stephen, you know everything that's happened in my life, you know separating from my wife, you know everything that happened, yeah that book just got far more interesting that's for sure."

The interview will be aired tomorrow (August 18) and he admitted that the only reason he wrote the book in his early twenties was because he was inundated with offers to do it, adding:

"I came out of a successful boy band and my solo career was doing well; all these offers on the table to do a book."