Coldplay brought actor Michael J. Fox on stage during their set at Glastonbury Festival to play a couple of tracks with them. The British band’s frontman, Chris Martin, was freestyling lyrics, bringing attention to famous faces in the crowd, eventually pointing out Fox. “Hereâs another legendary Michael. One who just totally rocks. With his Chuck Berry riff and the way he punched Biff, ladies and gentleman, please welcome Michael J. Fox,” said Martin during their set. Fox, who suffers from Parkinsonâs disease, joined the band on stage and played along with the final two tracks âHumankindâ and âFix You.â Following the performance, Martin said “The main reason why weâre in a band is because of watching ‘Back To The Future’â and thanked his âheroâ, Fox.