Marina and the Diamonds at the Øya Festival
Many music festivals promote an environmentally friendly ethos, but their carbon footprints often tells another story.
This year, Norway's Øya festival is taking its green credentials to a new level by powering the four main stages with 100% renewable energy.
Litter pickers are on site to sort rubbish and food is organic and locally sourced.
The BBC's Maddy Savage spoke to singer Marina Diamandis, known as Marina and the Diamonds.