'How We Do' singer Rita debuted a twist on the classic LBD wearing a shift black leather dress from the Calvin Klein collection.
Rita accessorised with a gold necklace and finished off her look with strappy black heels.
Perfecting her look, the Fifty Shades of Grey actress had her hair styled in tight curls and sported a slick of bright red lipstick.
The fragrance launch was part of New York Fashion Week and Rita looked fierce as she strutted down the red carpet on Monday night (8 September) while posing with her hands in her pockets.
Later in the evening, Rita joined Australian rapper Iggy Azalea on stage to perform their single 'Black Widow' to a star-studded crowd.
For her stage performance, 23-year-old Rita changed outfits, opting to jump around on stage in a ribbed crop top and matching shorts. Iggy, meanwhile, wore a nude leather coat and knee-high boots.
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Watch Iggy's music video for 'Black Widow' featuring Rita below: