Three hours of the best new and cutting edge music. MistaJam reveals the week's Jam Hot Record and gets your verdict on another new track in Jam's Jury.
The biggest RnB tracks and hot exclusives. Log on to bbc.co.uk/1xtra. Up next at 1.00am - RnB M1X with CJ Beatz.
We go all the way back to January 2011, when Ed Sheeran dropped in to see CJ.
Another chance to hear the previous week's RnB M1X with CJ Beatz.