This is amazing.
Quick Summary: Mumford & Sons were part of a documentary called Big Easy Express.
In the documentary Mumford & Sons, Edward Sharpe & the Magnetic Zeroes, and Old Crow take an antique train across America to share their music.
In this clip Mumford has stopped at a high school in Austin because they heard the band was learning their song, "The Cave".
Maybe it's the artist in me, but I found this to be so moving.
Passion has the power to move mountains and more importantly, move people. It definitely moved me.