A minor point, perhaps, and not necessarily to disagree with anything much, but I think there's a difference between 'celebrity' and 'icon', and John Lennon definitely comes into the latter category, which makes appreciation/perception of this photo a bit different from most of L's.
Quite interesting to compare it with the Che Guevara photo, which as a young teen I would definitely have chosen to have on my wall rather than this one (in fact didn't have either). However, with the benefit of maturer years ( ) although I still think the Che Guevara one is great, I can see that it is in the 'romantic' vein which at least this one, in it's 'banality' (not necessarily bad) escapes...
O.k. enough from me