Big Chill presents Necessary Mayhem

Necessary Mayhem celebrates their sixth birthday in Carnival style with some of the hottest dancehall and reggae acts the UK has to offer including revered MC Tippa Irie, BBC 1Xtra's dancehall don Robbo Ranx, Silverstar Sound, Curtis Lynch, Mr Williamz, Toddla T cohort Serocee, Marcus Visionary, Joe Grime and all-girl trio Style & Swagger. The best bit? It's free!