What is it about "Happy" by Pharrell Williams that makes you want to move? Why can't we sit still when we hear Ray Charles perform "I've Got a Woman"? Michael Jackson had it, and so did Stevie Wonder. "It," in this case, is syncopation, the gaps in the rhythm that your brain wants to fill in, as reported in the article Syncopation, Body-Movement and Pleasure in Groove Music (full article online).
Moonwalking is often attributed to Michael Jackson, but as summarized in this low resolution clip from Soccer AM, it was performed under various names in decades before MJ's live television performance in 1983. Let's backslide through the years, from Cab Calloway's 1932 version that he called "The Buzz" to Jeffrey Daniel performing the backslide as a member of Shalamar in 1982 on Top of the Pops in the UK. [more inside]
Separated at birth? Michael Jackson and Lon Chaney. (Good heavens! Michael, what have you done to yourself?)