If you don't know Bo, you just don't know

Bo Diddley, one of the most underrated of rock's pioneers, has suffered a heart attack at age 78.

Here he is in Switzerland, performing one of his best at the tender age of 60:

Keep a happy thought for Bo

Rock 'n roll pioneer Bo Diddley, a favorite of The Rascal and a huge influence on the Beatles, the Rolling Stones and countless other artists, is said to be doing better after suffering a stroke this past weekend in Omaha at age 78.

Here's a somewhat primitive video of the man performing two of his eponymously titled songs, "Bo Diddley" and "Hey Bo Diddley," more than 40 years ago in England.