Tulisa has the SpanX Factor! TV judge sports secret shapewear underneath her clingy dresses

Tulisa has the SpanX Factor! TV judge sports secret shapewear underneath her clingy dresses

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UPDATED:

07:59 GMT, 7 November 2012

Feisty urban star and X Factor judge Tulisa doesn't seem like the kind of woman to choose practical underwear.

But on Saturday's show the brunette needed a little help to squeeze in to her spangled, skintight Jovani dress.

24-year-old Tulisa chose a 72 High-Waist Half Slip from the famous Spanx shapwear range to give her body a boost as she stood next to glamour puss judge Nicole Scherzinger.

The 72 high-waist half-slip by Spanx

Tulisa Contostavlos appeared on stage in a sparkling dress by Jovani on Saturday night

Tulisa was gifted a 72 high-waist half slip from the shapewear specialist Spanx to wear underneath her sheer and clingy dress on Saturday night

The female judges have been waging a wardrobe battle each weekend as they vye for best-dressed in show.

This weekend Tulisa won a thumbs up from the fashion press for her heavily embellished lilac Jovani mini-dress while Pussycat Doll Nicole, 34, chose a ruffled leather cocktail dress by Emma Scervino.

But eagle-eyed viewers spotted the tell-tale Spanx line underneath Tulisa's mesh dress.

As part of the lust-have 'Tummy Taming' collection the Spanx slip is described as a way to wear the most sought-after trends of the season: 'Since this season it's all about maximizing the mini skirt, this torso-trimming, tummy-flattening, hip-smoothing slip will keep you looking firm and flawless under even the shortest styles.'

Tulisa's stylist Michelle Kelly was quick to tweet about the dress brands that the star chose for the weekend's two shows but kept quiet about Tulisa's magic underwear.

Tulisa Contostavlos wore a dress by Jovani for Saturday's show

Tulisa Contostavlos wore a dress by Jovani for Saturday's show

The brunette has been battling to out style fellow judge Nicole Scherzinger each week on the show

Style wars: Tensions are rising between the judges as the show gets nearer to the final

Style wars: Tensions are rising between the judges as the show gets nearer to the final

Spanx have come a long way since their footless tights were
first introduced to women's wardrobes in the early noughties in a bid to battle muffin tops and
floppy bots.

Today the cult shapewear brand has become the A-list’s worst-kept slimming secret.

Gwyneth Paltrow attributed her incredible post-baby figure to wearing two pairs of the
wonder underwear and celebrity friends of the brand include Jessica Alba,
Fearne Cotton, Adele, Tess Daly and Oprah.

Even the Kardashian
sisters have been snapped unwittingly showing off pairs of
pull-you-in-pants to control their curves.

Spanx Founder Sara Blakely says: 'Women young and old love SPANX for different reasons: girls looking to smooth their silhouette under a Christmas party dress, women looking to drop a dress size for their wedding anniversary.

'Our fans base is a wide range of women of all shapes and sizes but with the same experience.

'They tell us they feel more confident and love that SPANX offers results but without sacrificing comfort.'

STYLISH STARS IN SPANX …

Even Kim Kardashian needs a little help sometimes smoothing those famous curves

Even Kim Kardashian needs a little help sometimes smoothing those famous curves

Even Kim Kardashian needs help controlling her famous curves sometimes

Sister Kourtney sports Spanx to an LA lunch

Sister Kourtney sports Spanx to an LA lunch

Katie Holmes has worn the slimming pants for years

Katie Holmes has worn the slimming pants for years

Alexandra Burke is a fan of short Spanx on stage

Alexandra Burke is a fan of short Spanx on stage

Loose woman Denise Welch loves a tight pair of pants

Peekaboo: Jennifer Garner is caught out on a day trip

Loose woman Denise Welch loves a tight pair of pants and Jennifer Garner is caught out on a day trip