However, recent YouTube numbers and other video-based metrics make a powerful case for what rappers are the most relevant, musically. So, this doesn’t factor in Kanye’s fashion maneuvers, Jay Z’s business acumen or Dr. Dre’s indelible impact on the careers of so many artists. The list drills down on YouTube views and uploads of said artists. (Editor’s Note: The numbers are based on views from January to May, so it is a small indicator.) Check it out.