no
It is unknown who, or what had inspired them, but what is sure is, that they inspired many artists and fashion designers.
Most artists have simply discovered they have the talent and the urge.
lady gaga
Many artists have been inspired by science, but you are probably thinking of Leonardo daVinci.
Sigmund Freud
greeks
He certainly was, and he inspired other artists.
His talent and the urge. This goes for all artists.
giotto
they made beautiful paintings and inspired everybody to draw and become professional artists.
Pink Floyd were not inspired by anyone. They were originals and would often take ideas from other music artists, and evolve it.