Although some lead guitarists and vocalists, such as Chuck Berry and the blues legend BB King, had gained popularity by the 1950s, Presley rarely played his own lead while performing, instead providing rhythm guitar and leaving the lead duties to Moore. As a guitarist, Moore was a noticeable presence in Presley's performances despite his introverted demeanor. He became an inspiration to many subsequent popular guitarists, including George Harrison, Jeff Beck, and Keith Richards of the Rolling Stones. While Moore was working on his memoir with co-author James L. Dickerson, Richards told Dickerson, "Everyone else wanted to be Elvis—I wanted to be Scotty." Richards has stated many times (in "Rolling Stone" magazine and in his autobiography, "Life") that he could never figure out how to play the "stop time" break and figure that Moore played on "I'm Left, You're Right, She's Gone" (Sun) and that he hopes it will remain a mystery.