There are at least two bands called Drn Drn:
1.) The Finnish Drn Drn is a psych/kraut/(post)punk band. Their debut album was released on the 6th of February, 2014 as a cassette and a download.
2.) The second Drn Drn is actually the same band as the first one.
The first album of both bands is out! Get the delicious tape (and/or handy mp3s) here: https://drndrn.bandcamp.com/album/fortunakuningas
Sample songs here too:
There's also news, videos, gig dates and other official band stuff here:
Last.fm will continue to be updated with covers, jams, demos and other one-day-projects. You'll get the official stuff from links mentioned above.