James Brown was known as the "Godfather of..." what?

Explanation

James Brown (1933-2006) was a well-known American singer, songwriter, bandleader and record producer born in South Carolina. James Brown contributed to the development of gospel and rhythm music into soul and funk. He was known by the nickname "The Godfather of Soul." This is also the titel of one of his songs, which also include hits like "Sex Machine" and "I Feel Good."