While filming "Doc Hollywood" in 1991, Michael J. Fox first noticed a tremor in his pinky finger. A visit to a neurologist brought a life-changing diagnosis: young-onset Parkinson’s disease (PD). At just 29 years old, Fox faced the daunting reality of a progressive neurological condition.

Michael J. Fox admitted that maintaining his legendary dark sense of humor is actually a bit of work. The actor told People that it's "hard for me" but "I gotta keep it intact." Fox spoke to the outlet at his annual A Funny Thing Happened on the Way to Cure Parkinson's fundraiser Saturday.

The music icon performed at the Michael J. Fox Foundation's yearly gala on Saturday, Nov. 16 Stevie Nicks is supporting an important cause and giving props to the "lovely" Michael J. Fox. On Saturday,