Credit: Glen Campbell's wife says Alzheimer's disease has robbed the 80-year-old singer's ability to play guitar.

Wife: Glen Campbell can no longer play guitar

Photos: Chuck Berry leaves behind rock ‘n’ roll legacy

Grammy-winning jazz producer Tommy LiPuma dies at 80

Have a talent? Marine Corps Marathon seeks course performers

Marco Rubio criticizes Snoop Dogg over Trump video

Steven Van Zandt headlines Rock & Roll for Children benefit show