In the 1970s and 1980s Bjorn had a successful modeling career, being represented by the Ford Modeling Agency in New York and Nina Blanchard in Los Angeles. She was featured in a great number of television commercials both in Europe and the United States and held exclusive contracts with Noxema and Vidal Sassoon. During that time Bjorn studied acting in Los Angeles and appeared in several films and television shows in the United States, such as More American Graffiti and Get Crazy.