R&B sensation Kelis debuted a new single over the weekend as "Distance" was premiered on London's Reprezent Radio.  The single then appeared online Sunday, and can be heard below.  Produced and co-written by dubstep producer Skream, "Distance" is the first single from the singer's upcoming sixth album, which Kelis says is about halfway done.  No release date or tracklisting for the follow-up to "Flesh Tone" has yet been announced.