Moon Mullican, born Aubrey Wilson Mullican on March 29, 1909, in Polk County, Texas, was an influential American country and western singer, songwriter, and pianist. Known as the "King of the Hillbilly Piano Players," Mullican was a prominent figure in the hillbilly boogie style, which later influenced the development of rockabilly. His musical journey began in his childhood when he learned to play the organ, despite his religious family's initial disapproval of secular music. Influenced by blues artists like Bessie Smith and Blind Lemon Jefferson, as well as country musicians such as Jimmie Rodgers and Bob Wills, Mullican developed a unique style that resonated with audiences.

In the 1930s, Mullican earned the nickname "Moon," possibly due to his love for the dominoes game "Shoot the Moon" or his all-night performances. He played with various bands, including Leon Selph's Western swing band, The Blue Ridge Playboys, and Cliff Bruner's Texas Wanderers. As a session musician in the early 1940s, he contributed to hits like "Truck Driver's Blues" and "I'll Keep On Loving You."

Throughout his career, Mullican was associated with labels such as King and Coral, and he continued to perform until 1966. His music left a lasting impact, with artists like Jerry Lee Lewis citing him as a major influence. Moon Mullican passed away on January 1, 1967, in Beaumont, Texas, leaving behind a legacy that continues to inspire musicians.