16:00The Official Chart on Radio 1 with Jack SaundersCalvin Harris Is Number 1!BBC Radio 1 Duration: 3 hours Sun 4th May 2014, 16:00 on BBC Radio 1 EnglandJameela catches up with Calvin Harris as he finds out he's the UK's Official Number 1GenresMusicPop & ChartBrandThe Official Chart on Radio 1 with Jack Saunders Source: BBC Online
