We all think of one thing whenever anyone mentions "festival hair". Glitter, obviously. But with the recent awareness of the negative environmental effects of non-biodegradable glitter, alongside the explosion in creativity among hair stylists, the sparkly stuff is to take a bit of a back seat this season. If Coachella was anything to go by, festival hair is set to be more mesmerising and intricate than ever before. Credit: sweethearts_hair