The AfD ended in August  but the single didnt hit the charts until October  Unless Billboards Bubbling Under RBHipHop Singles doesnt qualify as a national music chart then WPBAND  would seem to be satisfied as I noted in my edit summary when I denied the speedy Regards    On further research And that could be the answer Billboards web site says Most of the charts in Billboard are either pure sales or radio charts The only exceptions in which we mingle sales and radio data are two of our signature charts the Billboard Hot  and Hot RBHipHop Songs as well as two charts based on the same data feeds as the Hot  the Hot s Bubbling Under chart which ranks the top  titles that have not yet reached the Hot  and Heatseekers Songs which reflects the most popular songs by new or developing acts defined as those who have never appeared as a lead artist in the top  of the Hot  or the top  of Hot  Airplay prior to Dec  Doesnt address Bubbling Under RBHipHop Singles chart but the logic is pretty much the same I suspect I think thats enough answer to satisfy me however Thanks and sorry to have bothered you TM