Gravity Falls Theme Song Brother Sister ( A Cappella)

My sister and I did an entirely a cappella (with some claps) version of the Gravity Falls Opening theme Tell us what you think Edit: I ve gotten this questions few times in comments, and YouTube won t let me reply to some of them, but to answer my sister and I aren t twins. I m older by almost five years :) Gravity Falls on Piano: Piano tutorial: Behind the scenes: Buy