Does her bum look big in this? Posh Spice's unflattering outfit

The star, usually commented on for her tiny physique, seemed to have grown extra large in the rear area while wearing an odd sparkly silver dress and leggings ensemble.

And that isn't the only part of Posh that was eye-catching that night.

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Sitting pretty: Victoria and the Spice Girls performed at the TD BankNorth Garden in Boston, husband David was in the audience ahead of hearing the bad news that he would not be picked for the England team

The Spice Girl also took to the stage with a mystery bandage, prompting speculation that it may be covering yet another tattoo.

Posh appeared at the concert in Boston with a heavily strapped upper back.

The mystery bandage ran from the back of her neck to the top of her corset, and was visible only when the Spice Girl was seen from the rear.

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Accessorise: Victoria Beckham took to the stage in Boston on Wednesday with an unusual accessory to her Roberto Cavalli designed outfit, a mystery bandage

Posh didn't appear to be injured, and the bandage didn't seem to impede her movement as she took to the stage with her usual enthusiam.

The Spice Girls were in concert on Wednesday at the TD BankNorth Garden, with husband David Beckham sitting in the front row, before he left for Brazil, and learned he was not going to be included in the England squad for their forthcoming friendly.

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Strapped up: Posh' mystery bandage ran from the back of her neck to the top of her corset - but it didn't appear to impede her movement onstage

Posh and Spice pals Emma Bunton, Melanie Chisholm, Melanie Brown, and Geri Halliwell performed to a near-capacity crowd in their Roberto Cavalli-designed fashions.

They arrived in Boston on Tuesday with their families in tow, amid rumours that their reunion tour was not quite the hit they were hoping for, with plans for concerts on five continents failing to materialise.

But in Boston at least, with jewel-encrusted microphones, the girls, all now in their 30s and (except for Chisholm) mothers, relived their heyday, singing hits to an appreciative crowd, from their days as Britain's number one girl group.

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Spice pals: Victoria took to the stage in Boston amid rumours that the Spice Girls were planning to cut short their reunion tour due to lack of interest

Yesterday, the Spice Girl appeared at Saks department store to launch her DVB denim line.

And she revealed a new addition to her growing cluster of tattoos, a new script inked underneath her Roman numeral tattoo.

Girl power: Spice pals Emma Bunton, Melanie Chisholm, Melanie Brown, Geri Halliwell and Posh relive their heyday