The Saturdays' Frankie Sandford flashes a bit too much leg as she struggles with her tulip hem dress

By Sarah Bull

Last updated at 1:36 PM on 4th July 2011

As one of the UK's leading girlbands, The Saturdays are always under pressure to maintain their style by wearing the latest outfits and keeping up with the fashion trends.

But Frankie Sandford came slightly unstuck with one of the most popular trends of the moment when she stepped out wearing a purple dress with a tulip-style hem.

The 22-year-old singer appeared self-conscious about the plunging dress as she walked her dogs as the group took a break from filming their latest advert.

Pretty in purple: Frankie Sandford stepped out wearing a purple tulip-hem dress as she filmed a new advert with the rest of The Saturdays in London last week

Careful! But Frankie appeared self-conscious about the outfit as she accidentally flashed a bit too much leg

And, as Frankie walked along, a gust of wind caused the dress to blow up even more, causing the singer to show off a lot more leg than she would have liked.

Frankie was then spotted trying to hold down the hem of the dress as she made her way back to the set.

She was joined by her fellow Saturdays bandmates Mollie King, Vanessa White, Una Healy and Rochelle Wiseman as the group shot a new advert in London last week.

Colourful: Mollie King, Rochelle Wiseman and Una Healy looked trendy in their outfits on the set, but haven't revealed what the advert is for

Colourful: Mollie King, Rochelle Wiseman and Una Healy looked trendy in their outfits on the set, but haven't revealed what the advert is for

However, the girls are being very cagey about what the advert could possibly be for.

Una wrote on her Twitter page to tease fans: 'Hanging in our winnebago for lunch! Been shooting for 3 long days at different locations, can't say for what yet but its really cool!'

It could be that the advert is for a clothing company, as all the girls looked very dressed up as they arrived on set.

While Mollie also showed off her slender legs in a pretty floral dress and heels, Rochelle looked more casual in a rust-coloured maxi dress, while Una opted for skinny jeans and a leopard-print T-shirt with black boots.

Belting it out: It was a busy weekend for the girls as they took to the stage to perform at the Chester Rocks music event

Toned: Frankie showed off her lean figure in a tiny pair of gold hotpants and midriff-baring top

It was a busy weekend for the girls as they took to the stage as for the Chester Rocks music festival at Chester Racecourse.

And the girls were dressed to kill in their trademark colourful ensembles and heels.

Frankie led the way in a pair of gold denim micro shorts, a midriff leather jacket and matching heels to join her girl band on stage.

Brights: Frankie, Mollie and Vanessa showed off their stage outfits before they performed for their fans

Brights: Frankie, Mollie and Vanessa showed off their stage outfits before they performed for their fans

Mollie, 24, wore a bright orange asymmetrical dress alongside black laced ankle boots, while Vanessa, 21, joined in on the orange theme with her top but donned blue shorts.

Rochelle, 22, also threw on a flowing mandarin-coloured skirt with the same boots that Mollie wore but accompanied them with a black top.

Cheeky! Mollie donned hotpants baring the American flag as she left Chester Racecourse after performing

The Saturdays perform at Chester Rocks alongside McFly and Sugababes

By Jessica Satherley

Last updated at 12:27 PM on 3rd July 2011

Wayne Bridge played the doting boyfriend to his WAG Frankie Sandford yesterday, as he accompanied his girlfriend to her gig.

The Saturdays were performing at Chester Rocks music festival at Chester Racecourse and Frankie’s number one fan appeared to be the Manchester City footballer.

The 30-year-old left back arrived with Frankie, 22, and the couple wore matching outfits of white tops and jeans.

Identical couple: Frankie Sandford and Wayne Bridge were wearing matching outfits as they arrived at Chester Racecourse and even showed off similar hair cuts

And the couple were even carrying the same beige jackets and matching cropped haircuts.

Luckily the couple didn't bump into Frankie's ex-boyfriend Dougie Poynter from McFly though, who were also performing at the festival.

After spending some time with her footballer beau, the singer soon changed into a pair of gold denim micro shorts, a midriff leather jacket and matching heels to join her girl band on stage.

Frankie met up with her girls, Vanessa White, Una Healy, Mollie King and Rochelle Wiseman, to pose for photographs before hitting the stage.

The new Posh and Becks? The couple seemed to be emulating the Beckhams as they arrived in their matching jeans and white T-shirts

With her girls: Frankie met up with her girl band, Vanessa White, Una Healy, Mollie King and Rochelle Wiseman to pose for photographs

And the girls were dressed to kill in their trademark colourful ensembles and heels.

Mollie, 24, wore a bright orange asymmetrical dress alongside black laced ankle boots, while Vanessa, 21, joined in on the orange theme with her top but donned blue shorts.

Rochelle, 22, also threw on a flowing mandarin-coloured skirt with the same boots that Mollie wore but accompanied them with a black top.

Hot pants! Frankie changed into her micro gold shorts to perform, while Mollie King had previously arrived in her shorts before changing into a dress

Hot pants! Frankie changed into her micro gold shorts to perform, while Mollie King had previously arrived in her shorts before changing into a dress

Colourful creations: Una Healy and Mollie King both brightened up the summer day by wearing purple and orange pretty dresses

And Una, 29, opted for a pink and purple strapless dress that boasted a long train from the back.

The band belted out singles from their third studio album Notorious, as well as some of their hits such as Forever Is Over and Missing You.

Una tweeted after the event: ‘Chester, you certainly did ROCK this evening! Thank you X.’

Also playing at the two day outdoor music festival was the Sugababes, Taio Cruz, The Wanted and Eliza Doolittle.

On stage: The Saturdays hit the stage to belt out some of their hits during the Chester Rocks festival yesterday

Workout much? Frankie Sandford showed off her incredibly toned torso and thighs, not to mention a hearty tan in her tiny hot pants and midriff top

Nice choreography! The girls were in perfect timing with each other, vocally and during their dance routines

And celebrity guests included some of the Hollyoaks cast who popped along for the Saturday gig.

Eliza Doolittle rocked out in a cute floral skirt and a tie-dyed rolled up T-shirt and accessorised with a plastic necklace.

While the Sugarbabes, consisting of Heidi Range, Amelle Berrabah and Jade Ewan, performed in silver and black metallic dresses on stage.

The competition: Also performing at the festival was fellow girl band Sugarbabes, consisting of Heidi Range (right), Amelle Berrabah (left) and Jade Ewan (centre)

Ladies in black: The Sugababes performed in silver and black metallic dresses on stage as they belted out their hits in Chester

Danny Jones from McFly was also spotted strolling around the racecourse, but Frankie Sandford’s ex-boyfriend Dougie Poynter from the band wasn’t photographed off the stage - but rocked when on it.

But McFly were performing yesterday, which may have proved awkward for the former couple, who split up last November.

Pretty in floral: Eliza Doolittle performed in a cute floral skirt and a tie-dyed rolled up T-shirt and accessorised with a plastic necklace

The ex files: Frankie's ex boyfriend Dougie Poynter (left) rocked on stage with McFly band mate Danny Jones (right)

Dougie went on to spend some time in rehab following the split from Frankie and was said to be completely heartbroken.

Today’s line up at Chester Rocks includes Iggy And The Stooges, Leftfield, Shaun William Ryder and Feeder.