16:00Radio 1 Breakfast with Greg JamesHarry Styles Star CallerBBC Radio 1 Duration: 1 hour, 45 minutes Mon 13th May 2013, 16:00 on BBC Radio 1 EnglandSomeone gets surprised in Star Caller!GenresMusicPop & ChartEntertainmentBrandRadio 1 Breakfast with Greg James Source: BBC Online