Everyone remembers the classic scene in "Back To The Future" where Marty McFly plays "Johnny B Goode" for a stunned 50's prom? Well 26 years later it is safe to say that Michael J. Fox has still got the goods. Michael performed at his annual Parkinson's benefit on Saturday night. Someone posted video of it on YouTube, and he was great. He even did the one-legged hop across the stage. Check it out: