Coldplay surprised fans at Glastonbury Festival by inviting Michael J. Fox to join them on stage, where he played guitar for hits like "Fix You." The band also debuted a new song with rapper Little Simz and Palestinian singer Elyanna. Earlier in the month, Coldplay announced their 10th studio album, Moon Music, set for release on Oct. 4. The album will be made using eco-friendly practices as part of the band's commitment to sustainability. Coldplay has reduced CO2 emissions on their current tour by 59% compared to previous tours. The band's performance at Glastonbury showcased their musical versatility and commitment to environmental stewardship, solidifying their status as a legendary act.