I'd have to disagree. He kept mentioning that he's heard worse singers, and that he feels he can do it. I could buy self-entitlement if he was a different type of personality, but he seemed sincerely crushed by not being approved of.
I'm all for trying new things, but why try them on national television?
You're probably totally right. I skipped in the video to the singing part and that was all I watched.