Going to Reading or Leeds festival this weekend? Here's 30 acts you should try and see starting with Green Day. After an unbelievably well-attended NME stage secret set last year - they actually had to cordon off the stage - the Cali punks are back this year to headline the main stage, with plenty of room for everyone. Don't miss out.
Photo: Pooneh Ghana/NME
Added: 19 Mar 2013