article: Over the course of the weekend, more than 2,000 acts will play on the festival's stages - but all eyes will be on the main headliners: Radiohead, Foo Fighters and Ed Sheeran. All three spoke to Radio 1's Annie Mac this week, discussing their hopes and fears for the festival. Here's what they had to say, and a look at their history at Glastonbury. Radiohead are headlining Glastonbury for the third time, 20 years after they first topped the bill. That show, played just two weeks after the release of OK Computer, was named the best gig of all time by Q Magazine but Thom Yorke recently revealed he nearly walked off stage in frustration after the band's monitors blew up, leaving them unable to hear each other. "I just went over to Ed [O'Brien, guitarist] and said, 'I'm off mate, see you later,'" he told BBC 6 Music. "He turned around and went, 'If you do, you'll probably live the rest of your life regretting it.' I went, 'Good point.'" In the intervening years, Radiohead have done more than any other band to push the boundaries of rock music, stretching dark, brooding electronics over Yorke's keening vocals. Their most recent album, A Moon Shaped Pool, rekindled their relationship with melody, and is bound to form the core of their set on Friday night. Annie Mac: How are you all feeling about this? Ed O'Brien: To be honest, a little nervous. A few days ago we were doing the setlist for a show in Denmark and we all fessed up: We had the Glastonbury tingles. You know, that anticipation and slight nerves. It means a lot. It's a huge one. What does it feel like to stand on that stage and look out to 100,000 people? The first time we played it in '97, it felt like we were looking out upon this scene of devastation. The rain was horrendous. But the interesting thing is, when it's really right, it doesn't feel like there's a divide. There's a feeling of the band and the audience experiencing this thing together. Can you tell us anything at all about what you'll be doing on Friday night? There won't be any sort of guest appearances! I thought that Coldplay with Barry Gibb last year was brilliant [but] we're not that kind of band. What advice would you give to people who are virgin Glastonbury headliners? It's all about humility. For me, the bands who don't do it on that stage - or anywhere in Glastonbury - are the ones who turn up with their shades on, and it's all about them. You've got to remember, you're just closing the night. You're not headlining, you're one part of this huge, great, amazing beautiful festival. You're providing maybe two hours of soundtrack to people's enjoyment and experience at that moment. You've got to leave your ego and shades at the gate. Foo Fighters were all set to headline Glastonbury two years ago when Dave Grohl fell off stage and broke his leg in Gothenburg, Sweden. With two
summary: After two days of build-up, Glastonbury kicks off in earnest on Friday when the Manchester Camerata open the Pyramid Stage, playing orchestrally-enhanced versions of club classics.