Bo Diddley

Ellas Otha Bates, known professionally as Bo Diddley, was an American guitarist, singer and songwriter who played a key role in the transition from the blues to rock and roll. He influenced many artists, including Buddy Holly, the Beatles, the Rolling Stones, the Animals, George Thorogood, Syd Barrett, Tom Petty, and the Clash.

Biography summary from English Wikipedia, photograph via Wikimedia Commons.