I found this video a few days ago and was just blown away. Here are Eric Clapton (Cream), John Lennon (the Beatles), Keith Richards (The Rolling Stones) and Mitch Mitchell (The Jimi Hendrix Experience), also known as The Dirty Mac, performing--live, no less--Yer Blues, Lennon's song that appeared on The Beatles (otherwise known as The White Album). Here is Lennon doing what he did and loved best: rockin' with other rockers and not being a Mop-Top. Go Johnny, go!