Mel B bust out of a cake looking like a saucy superhero to mark the 10th birthday of lingerie brand Ultimo in London yesterday.

Around 200 fans gathered at the Debenhams' Oxford Street store to watch the Spice Girl-turned-underwear model make a dramatic entrance dressed in a red, silver and black corset teamed with shiny black leggings and boots.

Surprise!: Mel B makes a dramatic entrance via a giant cake

"It's been fantastic to be the face and body of Ultimo and I am so happy to be here to celebrate its 10th birthday," the star said.

Wonder(bra) Woman: Mel wears her underwear as outerwear yesterday

As well as underwear modeling, Mel recently turned her hand (and incredibly buff body) to burlesque dancing, performing her own revue in Las Vegas.

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