16:00On 1XtraTuesday - Twin B sits in for the Big DawgBBC Radio 1Xtra Duration: 3 hours Tue 13th Jul 2010, 16:00 on 1xtraTwin B sits in for the Big Dawg with big tunes and big guests. Show more GenresMusicPop & ChartMusicHip Hop, RnB & DancehallMusicPop & ChartExperimental & NewBrandOn 1Xtra Source: BBC Online