This was performed by Jarod Radnich, who is not a part of the Piano Guys, but a close friend. Believe me, even his butt can play the piano well!
Eventually, they release the video Peponi, a remake of the song Paradise by Coldplay.
Apart from the wonderful music, what I noticed in the video is that Cello guy, Steven Sharp Nelson. According to him, the secret to playing the cello so well is the way he treats it. Have a look.
I have also found the following song pretty innovative in the way they play it.
Want more? Here is a composition by the original Piano Guy!
Every time I listen to one of these, I feel a sense of peace! I hope you do as well. In short, I really like their innovation!