By Sara Nathan and Amelia Proud

Last updated at 6:20 PM on 28th December 2011

The stability of their marriage was called into question when Katy Perry and Russell Brand decided to spend Christmas 7,000 miles apart.

And now it has been suggested the couple's separation over the festive period was because of a huge argument.

According to Us Weekly a source close to the couple said: 'They had a massive fight. She was like, 'F--k you. I'm going to do my own thing.'

Huge fight? Katy Perry and her husband Russel Brand spent Christmas 7,000 miles apart after having a massive argument, according to reports

Huge fight? Katy Perry and her husband Russel Brand spent Christmas 7,000 miles apart after having a massive argument, according to reports

Cosy: Russell Brand wraps up on a chilly Christmas Day at Coverack beach in Cornwall with friends including an unnamed bikini-clad woman

Cosy: Russell Brand wraps up on a chilly Christmas Day at Coverack beach in Cornwall with friends including an unnamed bikini-clad woman

Meanwhile the source said that Russell replied, 'Fine, f--k you too.'

Katy, 27, was seen lapping up the fine weather in Hawaii with a group of friends while comedian Brand was seen in a pub in Cornwall, England.

Given their hectic work schedules have meant the couple have spent considerable time apart, the holiday season provided the perfect opportunity to spend some quality time together.

Indeed the couple were said to have planned Christmas together with reports Katy was going to jet her family in a private plane over to the UK to celebrate together.

But while they are said to have had a big row, which saw then spend Christmas apart, there is little explanation of the nature of the 'disagreement'.

A spokesperson for the couple was unavailable for comment earlier today and neither Katy nor Russell have alluded to their relationship on Twitter.

The couple, who married in October last year after a whirlwind romance, have gone out of their way lately to quash speculation that their marriage is on shaky ground.

That good work however may be undone by the fact Miss Perry wasn't wearing her wedding ring as she frolicked in the sea with friends.

She has previously used Twitter to dismiss marriage rumours. She tweeted: 'Just cause we don't flaunt our relationship doesn't mean there's something wrong w/it. Privacy is our luxury. '

Comedian Brand reportedly spent his Christmas in a Cornwall pub before joining his friend David Baddiel's charity swim.

Both The Sun and People magazine reported that Brand and Miss Perry have rented properties in the respective beauty spots for the festivities.

And while People quotes a source that places Brand in Kauai, it points out that he was never pictured on the beach with his wife.

They appear to have gone their separate ways to celebrate the time of togetherness.

The British actor was also spotted at Winter Wonderland in London's Hyde Park last Tuesday without his wife.

Sun worshipping: Miss Perry wears a black hat pulled low over her face as she sunbathes on the sand beside a mystery man

Sun worshipping: Miss Perry wears a black hat pulled low over her face as she sunbathes on the sand beside a mystery man

He addressed the recent speculation that his one-year marriage has hit a rough patch on The Ellen DeGeneres Show earlier this month.

When told about the frenzied split speculation, Brand jokingly replied: 'What?! She should have told me!'

He added: 'I've treated the whole internet now as a wicked little liar. I am really happily married.

Mind the rocks: Katy Perry was not wearing her wedding ring as she swam in the Pacific with an unidentified man

Mind the rocks: Katy Perry was not wearing her wedding ring as she swam in the Pacific with an unidentified man

Quick adjustment: Katy fiddled with her bikini top as she played in the sea with a male friend

Quick adjustment: Katy fiddled with her bikini top as she played in the sea with a male friend

'Being famous is like a little bit of you is taken away and goes off and lives on its own and does what it wants.'

'I wish it would do more interesting things.'

Curvaceous: Katy showed off her voluptuous figure as she frolicked in the sea

Curvaceous: Katy showed off her voluptuous figure as she frolicked in the sea

'I don't know what is doing, but I'm married to Katy,' he continued. 'Perpetually, until death do us part was the pledge. I'm still alive.'

When asked about starting a family, Brand said he would like to have children with Perry.

Merrymaking: Miss Perry wades through the clear waters

Merrymaking: Miss Perry wades through the clear waters

'I would like one. I love those little babies in the beginning,' he said. Until then, the couple are content with being godparents to twin boys.

'I'm just observing them like I'm a scientist,' he said of his godchildren.

'So I can learn from them. Me and Katy are their godparents, which means we're responsible for their spiritual growth. Should be interesting...'

All smiles: The couple were last pictured together at the MTV awards in August

All smiles: The couple were last pictured together at the MTV awards in August