Scarlett Johansson is to design and model her own line of sportswear.

Sportswear giant Reebok have signed the actress up to help create their Scarlett 'Hearts' Rbk range - a new "high-end signature line of retro-chic footwear and clothing".

In a statement, the 21-year-old actress said, "Reebok has a rich heritage in developing and designing cutting-edge women's products which makes them an ideal company to partner with to launch Scarlett 'Hearts' Rbk.

I am very enthusiastic about working with Reebok to design this line." President and CEO of the company, Paul Harrington, added, "Scarlett embodies the pulse points of our brand - individuality, authenticity and a life lived to the fullest in perpetual motion.

These characteristics make her the perfect fit for our new women's campaign." Scarlett is no stranger to product endorsement. The 'Lost in Translation' actress is also currently a spokesmodel for L'Oreal's Paris cosmetics range, has posed for Louis Vuitton and a number of Calvin Klein perfume advertisements.

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