I wonder who’s silly idea it was to introduce Frank the Funkasaurus Rex to guest star as the ultimate Black Keys fan in their latest video for their new single “Tighten Up.” Considering both Dan Auerbach and Pat Carney are actually total goofballs, they both probably conjured up this silly idea. Check out Frank the Funkasaurus Rex bust a groove to their new single below.

Auerbach continues to grow more smooth and soulful with his vocals and the orchestrations keeping getting tighter. This song is definitely a soul jam with its R&B flavor. Very steezy.

The Black Keys new album “Brothers” comes out May 18, 2010 via Nonesuch Records.

[youtube=http://www.youtube.com/watch?v=DNXwicxlsvI]