16:00Ace & VisDumb CelebritiesBBC Radio 1Xtra Duration: 3 hours Sat 10th Jul 2010, 16:00 on 1xtraThe troublemakers are here. Anything could happen! Show more GenresMusicPop & ChartMusicHip Hop, RnB & DancehallMusicPop & ChartExperimental & NewBrandAce & Vis Source: BBC Online