James Robert "Bob" Wills (March 6, 1905 – May 13, 1975) 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 (although Spade Cooley self-promoted the moniker "King of Western Swing" from 1942 to 1969). He was also noted for punctuating his music with his trademark "ah-haa" calls.
Wills formed several bands and played radio stations around the South and West until he formed the Texas Playboys in 1934 with Wills on fiddle, Tommy Duncan on piano and vocals, rhythm guitarist June Whalin, tenor banjoist Johnnie Lee Wills, and Kermit Whalin who played steel guitar and bass.
