Who wrote the song Stitch by Stitch by Javier Colon?

Javier Colon sung this amazing song on the show The Voice and the
announcer guy said that each contestant had a song personally written
for them but they kept saying that Javier is a singer/songwriter so
did he write his own song? Please help me out here, I'd like to know
:)
this is the song if you haven't heard it

http://www.youtube.com/watch?v=sIh2H58Qa4w

:DDDDD