Mason Douglas Williams (born August 24, 1938) is an American classical guitarist, composer, singer, writer, comedian, and poet, best known for his 1968 instrumental "Classical Gas" and for his work as a comedy writer on The Smothers Brothers Comedy Hour, The Glen Campbell Goodtime Hour, and Saturday Night LiveWilliams was born in Abilene, Texas, the son of Jackson Eugene (a tile setter) and Kathlyn (née Nations) Williams.Williams grew up dividing his time between living with his father in Oklahoma and his mother in Oakridge, Oregon. He graduated from Northwest Classen High School in Oklahoma City, Oklahoma in 1956. It was in Oklahoma that he began his lifelong friendship with artist Edward Ruscha.