Actress/Singer/Model/Superstar Scarlett Johansson signed a contract in 2006 to join the arena of fashionable athletic wear with Reebok. She endorsed the "Heart" line, specifically designed to appeal to young women. She joins the league of celebrity endorsements for athletic wear with 50 Cent, Jay-Z, and Mike Skinner.
http://www.thecelebrityblog.com/2006/07/scarlett-johansson-signs-athletic-wear-contract-with-reebok/