Answer:
Crooked as a rainbow and slick as a plate ten thousand horses can't pull me straight.
A move made popular by the King of Pop.
They are many and one, they wave and they drum, used to cover a stare, they go with you everywhere.
As a state in America I am round on both sides and high in the middle.
I follow you all the time and copy your every move but you can't touch me or catch me. What am I?
Black we are and much admired. Many seek us if they are tired. We tire the horse, and comfort man, and turn White when we've fulfilled your plan.