It doesn't seem to me that you need to promote, if radio stations are playing it and people are downloading it without any previous promotion, let the quality of the music and the public decide what they want ... if they like it why waste money on promoting something that doesn't need promoting, but cash in by touring, funded by the profits from the downloading and I'm sure Justice would love to go to Australia and Europe if that's where they are popular. Good luck to them and you.