Gisele Bundchen glows at Rosa Cha launch in Sao Paulo

Brazilian-born bombshell Gisele Bündchen was a showstopper on Wednesday when Rosa Chá held a launch event for its summer collection in São Paulo.

The 37-year-old supermodel showed off her cleavage in a slinky black cocktail dress speckled all over with glistening metallic studs and was hemmed at mid-thigh.

She was apparently having a ball at the fête, beaming and flinging her arms wide as she stood against a backdrop made to look like a multi-level brick building.

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Ravishing: Brazilian-born bombshell Gisele Bündchen was a showstopper on Wednesday when Rosa Chá held a launch event for its summer collection in São Paulo

Ravishing: Brazilian-born bombshell Gisele Bündchen was a showstopper on Wednesday when Rosa Chá held a launch event for its summer collection in São Paulo

Heightening the effect of her precipitous legs in a pair of black ankle-strap stilettos, she'd flung on a black leather jacket, beaming as she stood for the cameras.

The mother of two, who's been married to rakishly handsome football star Tom Brady since 2009, spilled to E! News last year about maintaining her exquisite figure.

'I work out everyday,' she's said, although, 'sometimes I take a day off in the week; it depends,' and her go-to exercises include yoga, which 'I usually do by myself.'

Camera-ready: The 37-year-old supermodel showed off her cleavage in a slinky black cocktail dress speckled all over with glistening metallic studs and was hemmed at mid-thigh

Camera-ready: The 37-year-old supermodel showed off her cleavage in a slinky black cocktail dress speckled all over with glistening metallic studs and was hemmed at mid-thigh

Camera-ready: The 37-year-old supermodel showed off her cleavage in a slinky black cocktail dress speckled all over with glistening metallic studs and was hemmed at mid-thigh

 Festive: She was apparently having a ball at the event, beaming and flinging her arms wide as she stood against a backdrop made to look like a multi-level brick building

 Festive: She was apparently having a ball at the event, beaming and flinging her arms wide as she stood

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