Today, the Piano Guys released “Batman Evolution,” a music video tribute to 50 years of Batman theme songs. This musical journey through Batman history covers landmark music by Neal Hefti (1966), Danny Elfman (1989), and Hans Zimmer (2005). Each theme is played on a stage set representative of the original show or film, and the three Batmobiles on the sets visually represent the evolution of Batman in television and film. Be sure to stick around for the gag reel at the end!