The media would prefer to explain phenomena for you. We live in a click/view vortex where 24-hour viruses like Kreayshawn (video contains profanity) will always be inherently more marketable than someone like Koreatown's Dumbfoundead. Mickey Mouse ears always give you an advantage, especially when you're a 21-year-old female white rapper bragging about how much swag your ovaries have.
So while you've probably read a half-dozen national think pieces about Oakland's Kreayshawn, a rapper with one song, you've probably never heard of Dumbfoundead. After all, his success came the old-fashioned (read: slow) way. He started rapping like rappers used to. He rapped against rappers to get good at rapping.
So if it took him a decade of to make a viral YouTube smash, that's fine. He used that gestation period to develop a rabid and extensive fan base that even some major label rappers would envy. Nearly 60,000 Facebook friends, YouTube videos that regularly tread well into six figures in viewings, and tour dates all across the globe.
He's been able to amass fans on the Grind Time Battle League circuit, but he's also cultivated a groundswell of support from the local and national Asian American communities, and just regular rap fans. Proudly Korean American but never resorting to cheap flag-waving tactics, he's opted to rely on a slick creative flow and strong storytelling skill. Plus, the Project Blowed pedigree never hurts.