White people are underrepresented in the American music industry?

I dont get why drake and the weeknd etc... get classed as black when they are litterally half white half black.

This is very true. The genres that are popping atm all stem from black culture. And I'm referring to House & Hip Hop. So it would only make sense for blacks to be overrepresented, which they don't seem to be anyway.

Just out of curiosity I decided to google the top 40 at the moment in the US and figure out what percentage of artists/groups are black, white or other.

My findings (Only band/artist names are noted -- not the songs they are on the top 40 with):

Justin Bieber - white
21 Pilots - white
Rihanna - black
Adele - white
Flo Rida - black
The Chainsmokers with Rozes - white and white
Selena Gomez - hispanic
Drake - black
Alessia Cara - white
Shawn Mendes - white
G-eazy and Bebe Rexha - white and white
The Weeknd - black
Meghan Trainor and John Legend - white and black
Bryson Tiller - black
Post Malone - white
Future - black
Daya - asian

Note: Please forgive if I wrote the wrong ethnicity for a certain band or artist, I only googled it so I'm sure it's not completely correct. I do realise that there are one or two English artists in the list but I am using figures on population from a 2010 US census just to keep from complicating things.

So in conclusion:
10 out of 20 white = 50%
8 out of 20 black = 40%
2 out of 20 other = 10%

Bearing in mind that the US is approximately 13% black and 72% white, and therefore 15% other, is it then fair to conclude that black people are over-represented and white people underrepresented in the American music industry?

Sources: https://www.census.gov/newsroom/releases/archives/2010_census/cb11-cn125.html and http://www.vmusic.com.au/charts/billboard-top-40-singles-chart.aspx

Abel isn't half white lol

He's Ethiopian, so he's classed as Caucasian.

Being caucasian doesn't necessarily mean that you're white.