The Bowie is a bit loose and I think he usually dates things abbreviated, so it would be simply '02 not 2002. I wouldn't be happy with it. Didn't this Pink Floyd pop up on this forum last week? Type in a search and you'll see it.
The Nirvana doesnt look authentic to me. The Floyd is close, and i would have to ask Roger on that one. But the Nirvana being highly questionable doesnt help the case of the others.