In her new role, Lee will oversee the agency's 23 offices and 3,000 people across the US and Canada. She will report to David Jones, the chief executive of Euro RSCG Worldwide.
Lee has worked at Coca-Cola since 2002, and is credited with creating the "Coke side of life" slogan. Before working at Coca-Cola, Lee founded and ran the start-up agency Dinoto Lee. She also previously worked for Deutsch, where she was the executive vice-president and director of client services.