“It was a blast from the past as “Back to the Future” star Michael J. Fox joined Coldplay onstage for a surprise performance at the Glastonbury Festival in Somerset, England.
“The retired actor, 63, has been a devoted Parkinson’s disease activist since he was diagnosed with the long-term neurodegenerative disease at age 29. Fox, who now uses a wheelchair, played a guitar in his lap during “Humankind” and “Fix You.””
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