Just what is it about Glastonbury? 55 years in and the world's most famous music festival continues to create headlines, crown new stars and produce those one-of-a-kind, you-had-to-be-there moments that get talked about for years after.
Michael Eavis' creation has survived all manner of changing trends, dramatic cultural shifts and the rise and fall of countless major music acts, evolving from more rock and folk-centred lineups to eventually embrace dance music, reggae, metal, country, hip hop and, despite the protestations of a few grumpy gatekeepers, pop.
