The Duff sisters, Hilary and Haylie Duff, attended their first NASCAR race at the California Speedway on Sunday, February 26. The two canine friends in the photograph are Lola and Bentley. The two sisters cheered on NASCAR Driver Kevin Harvick who debuted the new IceBreakers Ice Cubes paint scheme on his #29 car. More Harvick can be found here on his official website. NASCAR has been growing in popularity and an attendance by pop star Hilary Duff is a sign of it becoming more mainstream.