First up, the Who doing Eddie Cochran's "Summertime Blues" at Monterey Pop. Watching Keith Moon play drums is an amazing thing. (And if you have time, there's another good version here. It's from 1989, so no Moon, but Entwistle is just as terrific.)
Next up, "Summer in the City" by the Loving Spoonful. Lip-synced, but what can ya do.
Finally, Noel Coward singing "Mad Dogs and Englishmen."