James Packer's cigarette habit is 'becoming an issue' for fiancée Mariah Carey who 'worries about her children being exposed to the harmful smoke'

They've been celebrating in engagement bliss since late January after a whirlwind romance lasting just under a year. 

But like all couples, there's one vice of James Packer's that appears to be bothering his betrothed Mariah Carey. 

Sources close to the couple have told the Sydney Morning Herald that the billionaire's smoking is 'becoming an issue' for the pop diva.

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'It's becoming a bit of an issue': Sources close to Mariah Carey and James Packer say the billionaire's smoking is beginning to bother the pop diva

'It's becoming a bit of an issue': Sources close to Mariah Carey and James Packer say the billionaire's smoking is beginning to bother the pop diva

'It's her voice she worries about, and the twins too,' the friend said. 

'She doesn't want them being exposed to James' cigarette smoke... it's becoming a bit of an issue.'

Though the 45-year-old singer has a history of smoking - she confessed to Us Weekly just last year that she smoked 'frequently' between the ages of 12 and 18, and 'never' wants to go back. 

Nasty vice: The 48-year-old has grappled with his bad habit for years 

Nasty vice: The 48-year-old has grappled with his bad habit for years 

Betrothed: James and Mariah became engaged in January this year after less than a year together

Betrothed: James and Mariah became engaged in January this year after less than a year together

Make your toes twinkle in embellished heels by Christian Louboutin

Hello bling!

Mariah Carey has just got engaged to her billionaire boyfriend James Packer, but it's not the $7.5M rock on her wedding ring finger that has really caught our attention.

Mimi got all dressed up to debut her diamond, wearing a black wrap dress with a huge embellished detail on one side, which she teamed with a pair of crystal encrusted high heels.

That hint of red sole is a giveaway that they're by Christian Louboutin, and we love the PVC panel running right the way around the inside. The satin texture is super slinky, plus each and every one of those little crystals is like an engagement ring in itself! Swoon.

Unfortunately these exact style aren't available in the States, but click right to Net A Porter to see a similar design and then use them to jazz up a little black dress on your next night out. No other jewelry is required! Or emulate Mariah with the embellished shoes we've got lined up for you in the edit below.

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'I gave up smoking in one day and never went back,' she said, 'I absolutely detest cigarette smoke now.'

It's a harmful habit 48-year-old James has tried to kick before, unlike his father, the late media mogul Kerry who was also a smoker but never drank.

In an interview with News Corp in 2012, James revealed he'd had lap band surgery to help him lose weight, but the attempts at improving his health stopped there. 

'I'm an idiot. I (still) smoke and do all those things I shouldn't do,' he said.

'I've been off them (cigarettes) for 10 days but, you know, I don't want to say I'm off them, mate, because you know I'll probably have another one in a week.' 

Daily Mail Australia has reached out to James and Mariah's management for comment.  

'I (still) smoke and do all those things I shouldn't do': The billionaire confessed he was struggling to quit with his habit in 2012 after announcing he had lap band surgery to lose weight (pictured right in 2011) 

'I (still) smoke and do all those things I shouldn't do': The billionaire confessed he was struggling to quit with his habit in 2012 after announcing he had lap band surgery to lose weight (pictured right in 2011) 

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