Claim: Glen Campbell writes rock and roll songs.
Evidence: Glen Travis Campbell -LRB- born April 22 , 1936 -RRB- is an American rock and country music singer , musician , songwriter , television host and actor.
Rock and roll -LRB- often written as rock & roll or rock 'n' roll -RRB- is a genre of popular music that originated and evolved in the United States during the late 1940s and early 1950s , from African American musical styles such as gospel , jump blues , jazz , boogie woogie , and rhythm and blues , along with country music.