Diddley's gonna play on in heaven (if there is one), and he'll live on in our memories through his music.
And here's Bo in 1955 on the Ed Sullivan Show, where, as wikipedia enlightens:
...he infuriated the host. "I did two songs and he got mad," Bo Diddley later recalled. "Ed Sullivan said that I was one of the first colored boys to ever double-cross him. Said that I wouldn't last six months". The show had requested that he sing Tennessee Ernie Ford's hit "Sixteen Tons", but, when he appeared on stage, he sang "Bo Diddley" instead. This substitution resulted in his being banned from further appearances.
and here's Bo Diddley in 1966.
Thanks to the Guardian, they've compiled some YouTube clips of Bo Diddley here.