(L-R) Actor Michael J. Fox, Levon Helm, singer Joan Osborne, Ceo of Revlon Ronald Perelman, and singer Gavin DeGraw attend "A Groovy Thing Happened on the Way to Cure Parkinson's" benefit for The Michael J. Fox Foundation for Parkinson’s Research at the Sheraton Hotel on December 1, 2007 in New York City. © WireImage.com











