Pop divas unite! Rachel Stevens and Una Foden put on a sassy display as they team up for special The Voice Of Ireland finale performance

They are the leading divas from two of the UK's best-loved pop groups.

And even though S Club 7's Rachel Stevens and The Saturday's Una Foden were due to battle it out for The Voice Of Ireland glory on Sunday night, they were uniting for a one-off finale performance.

Rachel, 37, and 33-year-old Una - both yummy mummies of two - co-ordinated in slinky little black dresses as they took the stage for a very special pop take-over.

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Divas unite: The Saturdays' Una Foden (left) and S Club 7's Rachel Stevens (right) joined forces for a special performance on The Voice Of Ireland on Sunday night

Divas unite: The Saturdays' Una Foden (left) and S Club 7's Rachel Stevens (right) joined forces for a special performance on The Voice Of Ireland on Sunday night

Rachel highlighted her petite form in a fitted satin dress and matching heels, while she was towered over by a statuesque Una.

She channeled her noughties-era pop wardrobe with a headband and a high neck dress as she added some subtle sex appeal with sideboob on show.

Meanwhile, one fifth of The Saturdays, Una, impressed in a mini dress that was layered over by a silver-lined skirt, just hinting at her post-baby frame, three months after the birth of her second child.

Attitude: The Voice Of Ireland's female vocal coaches brought their attitude to the stage to show off their own musical talents

Attitude: The Voice Of Ireland's female vocal coaches brought their attitude to the stage to show off their own musical talents

Rivals: The duo are competing in The Voice finale for the act who best deserves this year's win

Rivals: The duo are competing in The Voice finale for the act who best deserves this year's win

Una, who already has three-year-old daughter Aoife Belle with rugby player husband Ben Foden, delivered baby Tadhg in February but appeared to have snapped back to her sensational shape.

Rachel also has two children, one-year-old Minnie and four-year-old Amelie, after five years married to Alex Bourne.

The pop songstresses are both coaches for this year's singing competition alongside Bressie and Kian Egan.

Underdog: Una still has one act in the competition, Patrick Donoghue, while Team Rachel is particularly strong with contestants Kieran McKillop and Sarah McTernan

Underdog: Una still has one act in the competition, Patrick Donoghue, while Team Rachel is particularly strong with contestants Kieran McKillop and Sarah McTernan

Una may still have one act in the competition, Patrick Donoghue, but Team Rachel is particularly strong with contestants Kieran McKillop and Sarah McTernan still in her corner.

Emma Humber, is being represented by Bressie while Westlife's Kian has been left without an act in the series finale this year.

Rachel is of course the competition's only vocal coach not come from Ireland, but the brunette has admitted that since joining the show last year, Ireland has become her 'second home'.

Black beauties: The mums of two put their impressive shapes on show in similar little black dresses

Black beauties: The mums of two put their impressive shapes on show in similar little black dresses

Body confident: It has only been three months since singer Una had her second child with husband Ben Foden

Body confident: It has only been three months since singer Una had her second child with husband Ben Foden

Next month, the musician joins her old bandmates for an S Club 7 reunion tour, and with 15 years of showbiz under her belt and two babies later, Rachel was last year hailed FHM's 'sexiest woman of all time.'

She's bounced back from her pregnancy spectacularly well, with her impeccable frame still in shape as she celebrates Minnie's first birthday this month. 

Speaking to The Independent's Weekend magazine on Sunday, Rachel confessed that she was three months pregnant with her youngest daughter when she featured on the scantily-clad cover of the men's magazine last year.

Sexiest woman of all time: Rachel has recently been hailed FHM's sexiest woman of all time

Sexiest woman of all time: Rachel has recently been hailed FHM's sexiest woman of all time

'By the time the shoot actually took place I had just hit the three-month mark. And I was beginning to feel a bit more human and a lot less ill.

'These days, it's a nice thing to have to look back when it's 3am and I'm up with Minnie, or when you're surrounded by nappies and mess.'

She went on to say: 'My husband thought it was a bit strange when the sexiest woman edition came out. He works in an office and a few of his colleagues were taking the mickey a bit. On one hand he's delighted, of course, but on the other he's telling them to stop looking at the pictures!' 

Sass: The girls celebrated each other's vocal talents as they teamed up for a musical number

Sass: The girls celebrated each other's vocal talents as they teamed up for a musical number

 

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