Sports brand Reebok has signed a multi-year partnership with acclaimed Hollywood actress Scarlett Johansson to co-create a collection called Scarlett 'Hearts' Rbk.

The 21-year-old's range will be grounded in sport and will feature head-to-toe looks designed to take women "from the studio to the street in style", Reebok said.

Johansson will also feature in the brand's new global women's advertising campaign, which will be launched in spring 2007.

"Reebok is thrilled to partner with Scarlett because she is a world-renowned style icon and truly an inspiration for today's young women," said Reebok's president and CEO Paul Harrington.

"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 footwear and apparel collection and also for our exciting new women's campaign."

Johansson, who was recently voted 'Best Dressed' in an online poll conducted by Yahoo!, said: "Reebok has a rich heritage in developing and designing cutting-edge women's product which makes them an ideal company to partner with to launch 'Scarlett Hearts Rbk'," said Johansson. "I am very enthusiastic about working with Reebok to design this line."