The evolution of the Dark Knight, told through a piano and a cello.
This is track 7 of 13 from The Piano Guys' third album, Wonders.
I do not own the rights to this song. All rights belong to The Piano Guys.
Artist: The Piano Guys. Album: Wonders
Release date August 30, 2014
Record label http://www.youtube.com/user/ThePianoGuys