Frazier sang at the 1978 Jerry Lewis Telethon .
Frazier sang the United States national anthem before the rematch between Ali and Leon Spinks on September 15 , 1978 .
Frazier sang at the 1978 Jerry Lewis Telethon and he sang the United States national anthem before the rematch between Ali and Leon Spinks on September 15 , 1978 .