13:00Radio 1 Breakfast with Greg JamesTuesday - Justin Timberlake is on the Show!BBC Radio 1 Duration: 3 hours Tue 1st Nov 2011, 13:00 on BBC Radio 1 EnglandJustin Timberlake pops in on Dev who's sitting in for Greg James. Show more GenresMusicPop & ChartEntertainmentBrandRadio 1 Breakfast with Greg James Source: BBC Online