10. Apple Purchases Beats by Dre (2014; $3 Billion)
As it stands this is a record-breaking buy. What's even more incredible is that it's Apple that purchased the company. Sure the Beats by Dre headphones aren't strictly a hip hop headphone, but they are a product synonymous with the hip hop lifestyle. So for a hip hop lifestyle brand to achieve mainstream success AND get bought out by a leading technology company for over a BILLION DOLLARS, that sets a standard so high it's a wonder if anyone else will ever match it.