Melanie Brown makes a splash today as a swimwear model.

The Spice Girl poses in a series of revealing shots for Ultimo's Spring Summer 08 campaign, photographed in the sunny climes of Miami.

The 32-year-old is featured in a number of colourful bikinis, which show off her highly-toned physique.

The singer has already fronted the company's lingerie collection.

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Melanie Brown fronts Ultimo's swimwear collection

Brown can credit the recent Spice Girls' world tour and her appearance on US TV show Dancing With The Stars for her impressive figure.

The mother-of-two, labelled "queen of the floor" by her dance partner Maksim Chmerkovskiy, made it to the final of the popular American show, but lost out in the viewer's vote to Brazilian racing driver Helio Castroneves.

She took over as the face of Ultimo from a singer of another well-known girl group.

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Scary Spice reveals her tattoos while modelling these colourful bikinis

Girls' Aloud star Sarah Harding has been the Face and Body of Ultimo's A-C line since 2006.

Brown was signed up to be the face of the brand after owner Michele Mone saw her in a bikini in a paparazzi shot.

"Mel B is the biggest star Ultimo has ever signed and I am excited that this will take the brand onto another level," said Mone.

"I saw a picture of her in a bikini in Miami and had to sign her for Ultimo," she added.

Besides modelling for Ultimo and raising daughters Angel Iris and Phoenix Chi, the singer has also been busy working on a new album.

She has spent the past week working with some of the biggest producers in the music industry including Rodney Jerkins.

Mel B can credit the recent Spice Girls' reunion tour and her appearance on American TV show Dancing With The Stars for her impressive physique