16:00Radio 1 Breakfast with Greg JamesMarcus Butler Star CallerBBC Radio 1 Duration: 1 hour, 45 minutes Mon 17th Aug 2015, 16:00 on BBC Radio 1 EnglandMarcus Butler surprises a fan in Star Caller, plus the Official Chart Update.GenresMusicPop & ChartBrandRadio 1 Breakfast with Greg James Source: BBC Online