Who was dubbed the King of Rockability?

The title "King of Rockabilly" is often attributed to Carl Perkins, a pioneering figure in the genre that blends rock and roll with Country Music. His hit "Blue Suede Shoes" is one of the defining songs of rockabilly. Although other artists like Elvis Presley and Johnny Cash contributed significantly to the genre, Perkins is recognized for his influential style and contributions to its development.