Willie K Was an American Musician, Vocalist, Singer/Songwriter, and Record Producer Who Was Born William Awihilima Kahaiali’i. Hawaiian, Rock, Blues, and Opera Were Among the Genres of Music He Performed. at the Age of Eight, He Began Performing with His Father, Hawaiian Jazz Guitarist Manu Kahaiali’i. He Shared the Stage with Prince, Mick Fleetwood, Stephen Tyler, Willie Nelson, and Carlos Santana, Among Others.