Sónar is back, and the forward-thinking Barcelona event is set to be bigger than ever. This year's headliners diverse and bone-rattling, running the gamut from The Chemical Brothers and Skrillex to South African shock-mongerers Die Antwoord and innovative alt-popstar FKA Twigs. Meanwhile, the Red Bull Music Academy stage will once again be showcasing some of the globe’s most cutting-edge musical talent. This year, expect new graduates Mumdance, Ossie and Zebra Katz to deliver massive sets, as well as appearances from London’s new grime hope Novelist and his South London collective The Square. It’s gonna be big.