Black Keys – Tighten Up (Bluegrass Cover) Jun 15, 2015 Brother, Brothers, Cover Black, Cover Black Keys, Cover Blues Rock, Cover Rock, Cover Tighten Up, Bluegrass tribute to „Tighten Up“ by The Black Keys. Like 0 Thanks! You've already liked this « Somewhere over the rainbow cover by Victoria Strand » Wrecia Ford – Ring Them Bells