10:00BBC Radio 1's Big Weekend2015Matt Edmondson and Greg JamesBBC Radio 1 Duration: 3 hours Sat 23rd May 2015, 10:00 on BBC Radio 1 EnglandMatt and Greg are live from Norwich, chatting to 5 Seconds of Summer ahead of their performance.GenresMusicPop & ChartFormatsPerformances & EventsBrandBBC Radio 1's Big WeekendSeriesBBC Radio 1's Big Weekend: 2015 Source: BBC Online