#4 - Macho Man
I know that this shirt comes in many colours, so I am giving the nod specifically to the purple version. I say this for two reasons - not only is it likely the most memorable variant but also because I own the purple one.
You can call it bias if you like, but I stand by it.
Will John Cena beat Ric Flair's record? A former WCW Champion thinks so HERE
Anyway, like all the other shirts on this list, this one had a pretty basic design; it was just a reflection of Randy Savage in a pair of sunglasses with the words "Macho Man" printed under it in big, black letters. Its vibrant, neon colour served to underline Savage's loud, showy nature. Plus, anyone who wears it instantly becomes more macho (source: science or whatever).
Simply put - Randy Savage's shirt is the cream of the crop. It's classic cool, just like the Macho Man was.