Do people that sing on Disney get their voice edited?

On Disney, people sing ALL the time. If you ask me, it's annoying sometimes. But, when they sing, it sounds perfect, right? That's because people that listen to them sing are like "Woah...okay okay you can stop now" And why is that? Because they sing So bad. People edit people's voice everywhere.

To whoever asked this,

You have Just Been Fed with Knowledge >:3