In the past few years this has been happening a lot when it comes to rap. A lot of artist have been powered by the internet, gain a big following, but then they end up signing up to a major label. Drake, Soulja Boy, ASAP Rocky, Odd Future, etc. So far this guy has signed to no one and was able to break out the internet only sphere and get to the top of the charts.
I hope this happens more often. I am not anti corporate by a long shot but the labels have gotten worse not better since the days of Napster. Doing it this way an artist is able to make money but still avoid the dreaded 360 deal.