I know that Tone. But someone should not always be compelled to change his/her physical appearance just to please others. And someone telling "oh you're a great singer but you are fat and you need to lose weight to be successful" is very insulting. Changing so that no one would tease you or so that others would like you should not be the reasons why you need to change your appearance. This is one reason why I prefer the talent show The Voice over any other shows. They based their judgment purely on the contestant's voice and not on his/her appearance, which is what it should be when you are talking about talent. No wonder there are lots of crap singers and actors today because they mostly based it on the looks and body figures.
Just my 2p too.