i just heard this song today and thought it was amazing and i really want to play this on piano
title: my true self
author: にいとP (Probably?)
sung by: Miku, Rin, Kaito or Meiko
link:
Miku ver: http://www.youtube.com/watch?v=lM072VZ0M-U
(personally i like this one the most) the download link is in the description along with an off vocals karaoke ver

Rin ver: http://www.youtube.com/watch?v=qFchl7eTkPY&feature=related

Kaito and Meiko ver: http://www.youtube.com/watch?v=CWd_qNgcXDA&feature=related