The Girls Aloud pop star was spotted cosying up to a mystery man

If Sarah Harding's boyfriend Tom Crane has a jealous streak, he might do well to avert his eyes now.

The Girls Aloud pop star was spotted cosying up to a mystery man at Manchester's Hilton hotel over the weekend.

Wearing a form-fitting scarlet frock and towering peep toe heels, the singer leaned in for a warm embrace and what appeared to be a kisses with her handsome companion.
Getting cosy: Sarah Harding cuddles up to a mystery man at the Hilton hotel in Manchester over the weekend

Who's that boy? The singer chats away with her companion

Of course, it may simply be the flirtatious 26-year-old putting her playful side on show.

Sarah and her DJ boyfriend began dating a year ago after she split from her journalist boyfriend Joe Mott.

The now live together in the singer's £1 million flat in London's Camden and have already discussed the prospect of marriage and children.
Boys allowed: Sarah and Tom Crane, pictured here in February, have been dating for more than a year

Sarah, who revealed Tom has promised to propose to her in Venice when the time is right, has said: 'We have talked about children. Tommy wants loads. More than I think I can pop out!'

The notorious party-girl also says the pair plan to build their own home in the country.

She has said: 'We've got plans to move out and build our own place. There's some land we've got our eye on.

'I want to be out in the country, riding horses, sitting by a big log fire and being a home bod.'

Sarah and her Girls Aloud band mates have just wrapped up their Tangled Up UK tour with an emotional final performance in Birmingham last night.
Farewell: The Girls Aloud Tangled Up tour wrapped in Birmingham last night
Hug it out: The group share a moment as the performance comes to an end

Sarah Harding

Sarah Harding and Gemma Atkinson today unveiled their latest lingerie campaign

Sarah Harding and Gemma Atkinson today unveiled their latest lingerie campaign just in time for Valentine's Day.

The Girls Aloud singer, 26, and I'm A Celebrity... Get Me Out Of Here! reality star, 23, flash their figures in a series of underwear poses in the latest campaign for Ultimo.

A week before February 14th, Ultimo's latest collection features Gemma and Sarah dressed in a series of bra and knicker combinations.
Blushing belle: Sarah Harding sizzles in her hot pink lingerie in the new Ultimo ads

Scottish firm Ultimo flew their celebrity models to the warmer climes of Miami, Florida for the photo shoot last month to make sure they didn't get too chilly in their briefs.

Ex-Hollyoaks actress Gemma, who is planning to launch a pop career following her appearance on Soapstar Superstar, was unveiled as the face of Ultimo's D-G range in November.

Gemma wowed viewers of I'm A Celebrity two months ago with her svelte size 4 figure and her surgically-enhanced 34E breasts in a series of skimpy bikinis.
Sizzling: Gemma Atkinson shows off the tan she acquired in the jungle in I'm A Celebrity

Yin and yang: Sarah Harding shows off her toned stomach

Sarah piped her Girls Aloud bandmates to become an Ultimo spokesmodel in 2006 and models their A-C line. The latest Spring/Summer 2008 shots mark her last campaign as an 'Ultimo Angel'.

The pop star admits she spent time in gym getting in top shape for the new ad: "I am not a supermodel like all the other previous Ultimo models so I worked really hard to look the best I possibly could."

Ultimo creator Michelle Mone said: "Sarah has been great to work with. When Sarah was signed as The Face and Body of Ultimo in 2006, she was not a professional model like her predecessors, however, the more Ultimo photoshoots she experienced, the more confident she became.
Busty beauty: Gemma Atkinson is the face of Ultimo's D-F range

"It has been a pleasure to work with Sarah and I wish her all the best for the future. Sarah's successor will be named soon."

Gemma and Sarah follow in the footsteps of previous Ultimo models Rachel Hunter, Penny Lancaster and Helena Christensen.

The latest Ultimo collection is available from Debenhams stores nationwide.
Bright lights: Sarah's sizzling tan is complemented by the bright underwear ensembles

Valentine's Vixen: Gemma's shows off her slender size 4 figure

Gemma Atkinson , Sarah Harding

Is that a wardrobe malfunction, Sarah Harding? Corset is!

Girls Aloud singer Sarah Harding is no stranger to wearing racy lingerie, but today her low cut corset turned out to be a little too revealing.

The pop star was struck by a rather embarrassing wardrobe malfunction during a promotional appearance in London to promote Ultimo.

Blonde ambition: Sarah made a promotional appearance in London for lingerie brand Ultimo

But the fun loving pop star quickly regained her composure and continued to dazzle the crowd with her figure hugging outfit.
Her enviable figure was made all the more impressive after she revealed she dines almost exclusive on takeaway.

She has moved into a new place in Camden with her boyfriend DJ Tom Crane, but it currently has no kitchen.

Sarah recently said: "I like McDonald's burgers and Happy Meals.

"And I've got a thing for kebabs, too. But I don't eat too much of that stuff or it makes me feel a bit ill."

Often her takeaway runs follow a big night on the tiles.

She said: "I can drink with the best of them and I like to be able to hold my own. I see it as a challenge."

But Sarah says she also works hard to keep herself in shape.

She revealed: "I've got a fast metabolism, but I go to the gym, too. At the moment I'm doing loads of work on the pull-up bar and I go walking a lot as well."

Sarah is also in the middle of promoting her band's new single Tangled Up, which hits shop shelves on November 19.

Oops! Sarah's outfit turned out to be a little too revealing

Sarah Harding