Rooftop Suicide Club - fans of BTS and wilco check this out.

[rooftopsuicideclub]

fans of built to spill, wilco, and modest mouse, you may like this band. a lot.
check out their site, http://www.rooftopsuicideclub.com
4 piece, tons of harmony, piano, and guitars...
they have a ton of music for free up on their site...great covers too...

also check out their label for more great music...
http://www.stoppopandroll.com