I hate that as well but a load of people loved it. There's a People's Ford Celtic kit from the early 90's and that one is truly honking. One of the worst I've seen actually.
Barca currnetly have a bright yellow jersey.
Maybe not the worst ever but surely there are rules against that kind of thing (I think they should be deducted 25 points).
Handy for cycling in the dark and the likes...