Batfans are going to love this! The Piano Guys perform a medley of Batman themes, in chronological order, spanning 50 years. They also have some great visual elements, with different versions of the Batmobile and film sets serving as their backdrop (or is it batdrop?). Don’t be discouraged by the length of the video; the song is only four minutes long. The rest is an ad for their new album. -via Viral Viral Videos