Wikipedia: Madonna renowned for her belly button fetish
Quote:
singer Madonna in an interview for the May 1985 edition of Spin had said, "My favorite button is my belly button. I have the most perfect belly button: an inny, and there’s no lint in it. When I stick my finger in my belly button, I feel a nerve in the center of my body shoot up my spine. If 100 belly buttons were lined up against a wall, I could definitely pick out which one is mine."[64][65] Displaying her bare navel during performances became her trademark.[66][67][68]