Well, MK played "Why aye man" and "Quality shoe" in 2002, there were many recordings in audio and video, and he continued playing new songs before the record came out, he did with "Boom like that" in a spanish tv show in Santiago de Compostela, he did with "Secondary waltz" as well, and there were recordings in audio and video from all of them, and in youtube as well...
It doesnt affect anything regarding sales etc etc, in the contrary, is free promotion throught the net...