Michael J. Fox rocks 'Johnny B. Goode' at benefit

Michael J. Fox went "Back to the Future" when he rocked the guitar in a performance of "Johnny B. Goode."

Fox sang and played the Chuck Berry tune alongside Joan Jett at his foundation's A Funny Thing Happened on the Way to Cure Parkinson's event on Saturday (Nov. 12). He famously strummed the hit as Marty McFly during the 1985 time travel film.

Fox and Jett have a bit of a past together as well. They starred as brother and sister in the 1987 film "Light of Day."

Fox has been battling Parkinson's since 1991. Since it began in 2000, his foundation has invested nearly $180 million into researching the disease.

Check out the video. The highlight is at the end when Fox does a little "duck walk" much to the crowd's delight.