AC/DC singer Brian Johnson and his team of seven champion race-car drivers will take to the Sebring International Speedway on December 8th in Sebring, Florida to help raise money and awareness for Huntington's Disease. They will be driving a Porsche 935 JLP HD1 in the four-hour endurance event. Johnson took part in a similar event last year at the Daytona International Speedway in Daytona Beach, Florida, as he raced to raise a million for families affected by pediatric cancer.