https://www.inc.com/audacious-companies/burt-helm/beats.html
https://www.usatoday.com/story/tech/2014/05/09/beats-apple-dr-dre-may-be-billion-dollar-man/8899279/
https://www.forbes.com/sites/zackomalleygreenburg/2018/03/08/dr-dres-3-billion-monster-the-secret-history-of-beats-3-kings-book-excerpt/#61d28c6a258d