19:00MistaJamHear How Jam Celebrated His Birthday BBC Radio 1Xtra Duration: 3 hours Tue 19th Jan 2010, 19:00 on 1xtraMistaJam's here with the key to the underground. Show more GenresMusicHip Hop, RnB & DancehallMusicHip Hop, RnB & DancehallGarageMusicDance & ElectronicaDrum & BassBrandMistaJam Source: BBC Online