The popstar stepped in front of the camera for Madonna's clothing range and showed off her pins in a short shift dress.
Soaking up the sun rays, the 23-year-old looked effortlessly chic in the printed black and white dress, as she perched on top of a turquoise bench.
Rita, who will soon start filming her role as Mia in the film adaptation of Fifty Shades of Grey, was modelling a new collection for the fashion brand.
Rita oozed plenty of glamour sporting tousled hair, flawless make-up and a slick of red lipstick.
Changing outfits, Rita later switched into a grey printed skull jumper, torn jeans and black peep-toe shoe boots.
Earlier this week, the 'Shine Ya Light' singer popped into Macy's department store in New York, where she previewed the collection and made a quick visit to Santa's grotto.
With a successful music career behind her, and with a rising fashion and acting profile, Rita is certainly aiming for world domination!
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Watch Rita's music video for 'Radioactive' below: