Karmaloop has definitely been putting in serious work in 2011, going so far now as to release a mixtape catered to a specific genre every month. Mishka teamed up with Digital Boy + Shark to release Serious Business, a 54-track mix with a little hints of grime, techno, bassline, UK hardcore & dubstep tossed in (and a little Aphex Twin for a guilty pleasure).

Considering that the summer is fast approaching I’d add this to the T-shirt collection post haste. Everything is serious business in all walks of life. The tee comes in both white (pictured) and black and if you want a little music to rock to while you’re sporting this bad boy, check the link below.

DOWNLOAD: Karmaloop Presents: Serious Business