I notice many of the artists you predict as breakout artists are Latin artists, but almost no artists on the Billboard Hot 100 are Latin artists. Are you predicting that these artists will reach some (possibly international) top 100 list, or are you making predictions about the U.S. Top 100?
I would think that this might be more informative if you separated artists/singles that are clearly catering to different language populations.
Great suggestion. In the next iteration, we'll add a different model for Latin artists.