21:00On 1XtraAll the Heaviest Hits!BBC Radio 1Xtra Duration: 2 hours Sat 2nd Apr 2011, 21:00 on BBC Radio 1 N. IrelandThe hottest hip hop joints, mad exclusives and big dawg artists. Show more GenresMusicHip Hop, RnB & DancehallHip HopBrandOn 1Xtra Source: BBC Online