I now think Prince is a ISFP, what throws off most is his very controlling, arrogant, rigid behaviour which is not typical of the easygoing, flower child ISFP image. It's kind of the same thing with Immanuel Kant, who I think is INTP, but he is a very atypical one, he was very structured and orderly, quite different from the random, careless, lazy INTP image, but he is definitely Ti dominant. I think if a P is in a PeJe or JiPi loop they are going to display more J-ish traits, like EFPs can seem very aggressive, bossy, and downright insensitive(my sister) if their Te is strong. I think one of Prince's main motivations is to shock and awe, make an immediate visual impact on people(Se), he kind of reminds me of Lady Gaga in a way(when he was younger in the 80's), who I think is an ISFP also.