Ronan Keating's wife makes him feel "complete".
The Boyzone singer feel "very lucky" to be married to his "amazing" spouse Storm - the mother of his son Cooper, 17 months - and is thankful she gets on well with Jack, 20, Missy, 17, and 13-year-old Ali, his kids from his first marriage to Yvonne Connolly.
He gushed to Australia's New Idea magazine: "I feel very complete as a man, as a person. I'm very lucky to have found Storm.
"She's amazing. She's fantastic, she's understanding and she's strong. The kids love her so it's perfect."
And the 'Life is a Rollercoaster' hitmaker is delighted his older kids have established a strong "bond" with their baby brother and think the tot is "adorable".
He said: "It's been amazing to watch them. There is such a bond between all four of them.
"My boy, I've never heard him use the word 'adorable' in my life until I took Cooper and put him in his hands.
"It's that completeness you feel. Strength, security, knowing they're all happy together."
Ronan takes great pleasure in seeing how easily Storm has adjusted to motherhood.
He said: "She's taken to it like a duck to water. She's been so natural at the whole thing, it's been a pleasure to watch her as a mum.
"Even though I've been there before, we're learning all the time.
"I'm the worrier, but she's like an earth mother - she's so calm, it's impressive."
The 41-year-old singer was previously a judge on 'The X Factor' in Australia and admitted he'd love to relocate Down Under again in the future.
He said: "I'd live here absolutely. A lot of my career stuff is back in Europe, but if I could do half and half, that would be great."