Coldplay's headlining performance at Glastonbury featured a special appearance from Michael J. Fox, who joined the band on stage in a wheelchair to play guitar during their rendition of "Humankind." Chris Martin praised Fox, calling him a legend and expressing gratitude for his influence on the band as fans of Back to the Future. The performance culminated with Fox sticking around for "Fix You." The iconic actor's presence added a truly touching and memorable moment to the already star-studded set, which also included appearances from Little Simz, Femi Kuti, Laura Mvula, and a video projection of BTS. Coldplay is currently on their "Music of the Spheres World Tour" and recently announced a new album called Moon Music. The heartfelt collaboration between Coldplay and Michael J. Fox provided a highlight of the event, showcasing the power of music to bring people together.