Michael J. Fox was in rare form this weekend, as he preformed Marty McFly's rendition of the classic Chuck Berry rock song "Johnny B. Goode", as originally seen in 1985's Back to The Future. The actor took the Waldorf-Astoria stage at a NYC charity bash to raise money and awareness for Parkinson's Disease in the name of The Michael J. Fox Foundation. You can watch the video below. To learn more about the foundation for Parkinson's Research: CLICK HERE