It's impossible to have any real historical discussion of rock and roll music without talking about Chuck Berry.
He's the artist who took blues, added country, threw in guitar solos and he sang about things relevant to the youth of the nation. He was one of the first people ever inducted into the Rock and Roll Hall of Fame. His songs laid the groundwork for the music that would come later.
Simply put, he is rock and roll.
His song Johnny B. Goode is on most top 10 lists for most influential songs of all time. It's the one Marty McFly played to a crowd of teenagers in 1955 in the movie Back to the Future. It has some of the most easily recognizable guitar solos in the history of music. He inspired an entire generation of guitar players.
At 85 years old, he is still performing to this day. A living legend.