The Nicholas Brothers

 

The phenomenal tap-dancing team The Nicholas Brothers performed in Harlem jazz clubs in the 1930s, then became a sensation in movies and later on tour. Neither Fayard or Harold Nicholas had formal dance training, but they grew up watching Vaudeville and learned their craft by observation. 

What set the Nicholas Brothers apart was their innovative "flash dance" style — high energy and acrobatic routines that won them accolades across the globe. They performed alongside great jazz masters like Cab Calloway among many others. Their many film credits include Stormy Weather and The Emperor Jones.

From Wikipedia:

"Fred Astaire once told the brothers that the "Jumpin' Jive" dance number in Stormy Weather was the greatest movie musical sequence he had ever seen...One of their signature moves was a "no-hands" splits, where they went into the splits and returned to their feet without using their hands. Gregory Hines declared that if their biography was ever filmed, their dance numbers would have to be computer generated because no one could duplicate them...Ballet legend Mikhail Baryshnikov once called them the most amazing dancers he had ever seen in his life."

Please look them up on youtube and watch the craziest dancing you've ever seen!

http://en.wikipedia.org/wiki/Nicholas_Brothers 
http://www.youtube.com/watch?v=_8yGGtVKrD8&NR=1