Radio 1's Big Weekend lands in the beautiful countryside surroundings of Earlham Park in Norwich. Radio 1 presenters Greg James and Clara Amfo kick off a weekend of music with performances from Antipodean boy band sensations 5 Seconds of Summer and Grammy-nominated Irish singer songwriter Hozier, plus lots of highlights from the Main Stage, In New Music We Trust Stage and BBC Introducing Stage on the opening day of the festival.