'I was a jerk': Michael Buble admits he was 'careless and reckless' with past girlfriends... seven years after split from Emily Blunt amid cheating claims

By Helen Zhao for MailOnline

Published: 19:31 EST, 19 March 2015 | Updated: 21:38 EST, 19 March 2015

Michael Buble has admitted he behaved 'recklessly and carelessly' with the hearts of women he previously dated. 

Now happily married, the 39-year-old singer appeared to include ex-girlfriend Emily Blunt in the reference. 

The former couple dated from 2005 until their split in 2008 after he allegedly cheated on her. 

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Former couple: Michael Buble admits that he was a 'jerk' to his ex-partners - including Emily Blunt (pictured at the Oscars in February 2007)

Former couple: Michael Buble pictured with then girlfriend Emily Blunt at the Oscars in February 2007 

The Everything hitmaker has been married to actress and model Luisana Lopilato, 27, for four years and the couple shares an 18-month-old son, Noah.

But he says he had to change his previous ways in order to become a loving husband and father.

'I was a jerk and I was careless and reckless with the hearts of women I was with,' Michael told etalk. 'And I got my karma. I earned it. 

'I got my butt and heart kicked and it hurt me enough that I looked in the mirror and I didn't want it to happen again.'

Happy couple: The 39-year-old singer joined by wife Luisana Lopilato in Buenos Aires, Argentina earlier this month

Happy couple: The 39-year-old singer joined by wife Luisana Lopilato in Buenos Aires, Argentina earlier this month

Michael dated Emily, 32, for three years until their split in 2008, months after shirtless photos of him in bed were leaked online, allegedly taken by a woman he was cheating with. 

In November 2007, The Globe reported that Tiffany Bromley had snapped the images and confessed to having an affair with Michael during his relationship with Emily.

Edge Of Tomorrow star Emily is now married to John Krasinski, 35, with whom she shares a 13-month-old daughter, Hazel.

'I think everyone looks back at some of the things we did and it's so cringy how I acted,' the father-of-one added.

Doting dad: The Everything hitmaker gave his and Luisana's 18-month-old son Noah a ride on his shoulders while on holiday in Spain in February 

Doting dad: The Everything hitmaker gave his and Luisana's 18-month-old son Noah a ride on his shoulders while on holiday in Spain in February 

Ready for a show: Michael attended Madrid Fashion Week in February 

Ready for a show: Michael attended Madrid Fashion Week in February 

'I learned about myself, I got closer to being spiritual and learned to be in the moment and realize how short life is. It changed everything.'

Michael credits his changed perspective as the key to a successful relationship.

'The reason to be a good guy isn't for the person you're with, it's for you,' he said. 'That sounds weird but I like me better now. I'm happier now.

True love: Michael shared this snap on Valentine's Day, writing, 'If I had it in my power, I would arrange for every girl to have your charms...'

True love: Michael shared this snap on Valentine's Day, writing, 'If I had it in my power, I would arrange for every girl to have your charms...'

'I'm better at what I do, I'm better on stage because I'm not pretending to be the guy I want to be.'

The Home hitmaker is nearing the end of his To Be Loved World Tour, having spent nearly two years on the road, in support of his chart-topping eighth studio album.

His wife and son have both joined him while he tours.

Daddy duty: He posted a photo with his son in his arms in January, writing, 'On the plane and off to Shanghai ! Why do I feel like this might be a long flight ?#mrmom #jettlagged #helplu #MBworldtour'

Daddy duty: He posted a photo with his son in his arms in January, writing, 'On the plane and off to Shanghai ! Why do I feel like this might be a long flight ?#mrmom #jettlagged #helplu #MBworldtour'

Mr. Popular: Michael performed in Durban, South Africa on Tuesday, writing with this photo, 'Just a little selfie with me & 18,000 of my closest friends in Durban, South Africa!'

Mr. Popular: Michael performed in Durban, South Africa on Tuesday, writing with this photo, 'Just a little selfie with me & 18,000 of my closest friends in Durban, South Africa!'

Michael added that he hopes to make life 'as normal as possible' for his little boy and is looking forward to taking some time off and spending it with Luisana on set.

His personal growth has contributed to a much more fulfilling professional life.

'Now when I go on stage it's bliss...' Michael said. 'Before that curtain opens I sit and I say thank you universe, God, it makes me better, more vulnerable.' 

Ex-girlfriend: Emily, 32, pictured out and about in Los Angeles last Friday

Ex-girlfriend: Emily, 32, pictured out and about in Los Angeles last Friday