Did you like the music? It's a song called Permafrost by Laurena Segura, and Penguin is offering a free download of the entire song on their Facebook page!
I also thought I'd share some other TFiOS-themed videos since John Green is a genius in front of the camera:
The vlogbrothers announcement in which he promises to sign all first print copies (which means you should pre-order before it goes into a second printing!):
John reading the first chapter:
Have you pre-ordered your copy yet?