…it is possible to go in and fix one note for pitch purposes and impossible to hear it as an edit in the final recording. I’ve seen it done in a studio. However, when these same people sing live it is very apparent to me that they don’t necessarily have control over their pitch because they simply haven’t had enough training yet. If they keep working on it they may get there... But they are not YET the equals of true idols. (See, perfect pitch is a scourge!) I still love their acting!!