i wouldn't really consider jay electronica mainstream but i do agree that dmt is making it's way around. in all honesty though you have this site and others like it to thank for that. easy to follow guides on extractions, help on finding mhrb etc.
there's also a new track by flying lotus called dmt song. and he had an ep called pattern grid world.
there's also that old track by sphongle that everyone knows about...
there's been a lot of music in the past few years that is made by people that like drugs for people that are likely interested in drugs that is related to dmt.
it's not like there's a lady gaga or taylor swift song about it.
edit:
Ryusaki wrote:http://xxyyxx.bandcamp.com/track/dmt
Not really mainstream this track, but very nice.
was just trying to think of some other dmt tracks, forgot about this one, good album, this guy has some other good stuff too haha