Rofl!
This should stand out as an important lesson to all singers. The only one who should stand and sing with no emotion or deep meaning is Jackie Evancho because as yet, she is only 11 and too young, yet born with a perfect classical voice.
Anyone older should be following Frank Sinatra. Don’t sing a song you don’t believe. Just a great voice, with nothing behind it, is boring and a one trick pony. Pour out your soul in the song; display the appropriate emotion for the lyrics. Be angry, be sad, be ecstatic, be passionate. And do not just rise in intensity early on and stay at your top intensity. Bo-ring! Give us your full vocal and emotional range throughout. Save your deepest connection to your audience for the end.
A singer who has real passion will be more popular and sell more than a better singer who doesn’t. Deal with it, Pia, Thia, etc.