How do you get this good streaming quality on audio?

[steffeeH]

I'm feeling a bit mindblown by the streamingquality on this track:
Major Lazer - Bubble Butt (Dada Life Remix) - YouTube

And it doesn't look like any YouTubepartner-channel, so how do they get this good audio quality?
How can I get this good quality to my music on both YouTube and Soundcloud etc?

Cheers.

 

[Pinky]

It looks like they just uploaded it as "HD" (default video playback is not HD, but it's an available setting). HD videos also have higher resolution audio.