Leggy Sarah Harding flaunts her perfect pins.as Cheryl Cole flashes her wedding ring at Girls Aloud rehearsal

It was business as usual for Girls Aloud last night as they jumped into a waiting car outside their west London rehearsal studio.

Sarah Harding was all smiles as she showed off her long legs in a pair of chic black tights.

Despite a hard day's work, her bandmates Cheryl Cole and Kimberly Walsh were also in high spirits as they beamed at paparazzi before heading home.

Leggy: Sarah Harding leaves a London rehearsal studio with her Girls Aloud bandmates last night

A tired-looking Cole was wearing her wedding ring, which she only recently took to sporting again since reports her footballer husband Ashley Cole had an affair first cropped up in January.

In the group's upcoming autobiography Dreams That Glitter, Cole pledges to always work at her marriage and admits she has been left emotionally scarred.

She said: 'I can't hurt any more than I've been hurt, I can't cry any more than I've cried. I've been to the highest of highs and the lowest of lows, so one day I'm going to find my middle ground and be happy.'

A tired-looking Cheryl Cole was wearing her wedding ring

Harding, meanwhile, hits out at her reputation for being promiscuous in the new book.

She said: 'One paper called me the "slapper" of the band. I don't think so. I've never even had a one-night stand.

'I have lots of male friends but that doesn't mean I'm linked romantically with all of them.'

Smiles all round: Cheryl (l) and Kimberly Walsh (r) jump into their waiting car

Snack time: A contemplative Sarah enjoys an apple

Tangoed Kimberley and milk bottle Nicola go shopping

They do most things in unison, such as singing, dancing and holidaying. But not, it seems, tanning.

Girls Aloud members Nicola Roberts and Kimberley Walsh made a rather startling contrast in the U.S. Monday.

Miss Roberts, 22, shone ghostly white in the glare of the flashbulbs, with just a touch of pink where the sun had kissed her shoulders.

Miss Walsh, 26, on the other hand, was the colour of a well polished Chippendale sideboard.

Colour contrast: Nicola Roberts and Kimberley Walsh in LA yesterday

The pair seemed keen to accentuate their differences, standing close together holding hands. Their appearance certainly drew much attention in Los Angeles, where their music is not particularly well known.

The girls are on their way back from a break in Thailand, where they have been consoling bandmate Cheryl Cole.

Girls day out: the pair hit Melrose Avenue in Beverly Hills for a shopping spree

Different shades: the duo have just returned from Thailand, where they were holidaying with fellow Girls Aloud member Cheryl Cole

Miss Cole, 24, has had to deal with allegations that her footballer husband Ashley Cole cheated on her with a blonde hairdresser last year.

The winter break seems to have helped take her mind off the Chelsea star.

On their night out in LA she wore a tight peach-coloured dress - and no wedding ring.

Girls Aloud will be back in the UK for Wednesday's Brit Awards, where they are up for best British group.

Girls abroad: In Thailand with Cheryl Cole, left

Another Big Night Out For Girls Aloud

Girls Aloud were back doing what the love most last night - performing, and of course, partying.

The group took to the stage at Sketch last night in their first London performance since returning from a visit to LA.

Dressed in flirty frocks, the girls emerged from the club in high spirits, with Nadine Coyle still clutching a wine glass as they jumped into a cab.

Cheers: Nadine Coyle took one for the road

In step: Cheryl Cole and Nadine Coyle both opted for violet frocks

Nadine, Kimberley Walsh and Nicola Roberts headed back to the Westbury Hotel in Mayfair after their show for some late-night drinks.

But party girl Sarah Harding wasn't going down quietly, and ended up going clubbing with her boyfriend.

She met Tom Crane after his DJ set at Studio Valbonne and then the pair headed to Soho's Kingly Club.

She comes in peace: Sarah Harding again showed off her Mr Spock haircut

High spirits: Kimberley Walsh and Nicola Roberts were all smiles as they emerged from the London club

Cheryl Cole opted for comfort over glamour as she slipped into a green tracksuit before heading home.

Meanwhile, Cheryl has finally called a truce with pop rival Lily Allen over their high-profile feud.

Lily said last week: "When I had my feuds with people [earlier this year], I was in a very bad place... [Now] I haven't a bad word to say about anyone."

Boys allowed: Sarah Harding's man Tom Crane showed his support

Cole, who once called the Smile singer a "chick with a d***", responded: "She's forgiven and I would have a drink with her if I saw her in a bar."

And in good news for fans, Kimberley Walsh has denied ongoing rumours the group will soon go their separate ways.

She said: "The end is not in sight for the band as we have the album out in November and another tour planned for May next year.

"We don't know what will happen after that. We'll see how the tour and album goes."

Fashion faux pas: Cheryl snapped leaving last night's gig in her track suit