Francis Warren Nicholls Jr., known professionally as Frankie Knuckles, was an American DJ, record producer, and remixer. He played an important role in developing and popularizing house music, a genre of music that began in Chicago during the early 1980s and subsequently spread worldwide. In 1997, Knuckles won the Grammy Award for Remixer of the Year, Non-Classical. Due to his importance in the development of the genre, Knuckles was often called "The Godfather of House Music".