Well, you know sometimes Bob Dylan wears his Bob Dylan mask.
IN THE COMMENTS: Original George suggests it was a Napoleon Bonaparte mask . And just remember, if you try disguising yourself, Bob Dylan would like you to know he can see through your masks.
MORE IN THE COMMENTS: Meade sends us here:
AND: That's from "No Direction Home," which you might want to buy, here. And Meade finds and especially likes the audio clip those guys in at the first link were talking about.