16:00The Official Chart on Radio 1 with Jack SaundersJessie J Chats 'Bang Bang'BBC Radio 1 Duration: 3 hours Sun 28th Sep 2014, 16:00 on BBC Radio 1 EnglandBang Bang reached number 1, so Jessie J came in for a chat about the single and about her album! Plus find out who made it to number 1 in the Album Charts.GenresMusicPop & ChartBrandThe Official Chart on Radio 1 with Jack Saunders Source: BBC Online