Contact sport on roller skates where half the fun is seeing what names people pick for themselves.
Fun fact: The original 1930s roller derby was one of the first professional sports to pay men and women equally.
Did the moonwalk on live telly in '83 and every kid on earth spent the next week sliding into furniture.
Fun fact: He outbid Paul McCartney to buy the Beatles' song catalog for $47.5 million in 1985.