Roots of Merle Haggard

Jamey Johnson is an American country music singer and songwriter.

Johnny Paycheck was an American country music singer and songwriter. He is a notable figure in the outlaw movement in country music.

James Robert Wills was an American musician, songwriter, and bandleader. Considered by music authorities as the founder of Western swing, he was known widely as the King of Western Swing. He was also noted for punctuating his music with his trademark "ah-haa" calls.