Pop Icon Glen Campbell Dies After Battling Alzheimer's

Glen Campbell, a singer whose music blended pop and country with appeal crossed generational lines has died.  Campbell was the voice behind hits like "By The Time I Get To Phoenix" and "Witchita Lineman".  Also, "Gentle On My Mind" was a favorite for those maybe not into hard rock or the psychedelic music that dominated the charts at the time. 
He hosted "The Glen Campbell Goodtime Hour", show that began as a summer replacement for the Smothers Brothers in 1968 and would go on to be a hit show on it's own.   My most vivid memory from the show was a clip of the Beatles from their famed "Rooftop Concert" singing "Get Back".  At the time, it was rare to see the Fab Four on TV.
Many know that Campbell also temporarily replaced Brian Wilson while the Beach Boys were on tour in 1964. 
In 2014, suffering from Alzheimer's, he brought a camera crew to film his "I'll Be Me" tour.