So Glad You're Mine - Arthur 'Big Boy' Crudup

Arthur "Big Boy" Crudup (August 24, 1905 – March 28, 1974) was an American Delta blues singer, songwriter and guitarist. He is best known outside blues circles for writing songs such as "That's All Right" (1946),"My Baby Left Me" and "So Glad You're Mine", later covered by Elvis Presley and dozens of other artists. Read more on wiki -
http://en.wikipedia.org/wiki/Arthur_Crudup