"Nothing about The Voice, American Idol, etc is real. Your votes don’t matter. Everything is pre-determined. In some cases they even choose your audition song for you, and if they want to tear you down for entertainment, they’ll choose something they know you can’t sing. And with the contacts artists sign, you cannot refuse.
Source: professional musician, I have not been on those shows but have friends who have. I cannot name names, them even telling me that stuff was against contract legalities."