When you are recording a song inside a sound studio:

1) Do not bother to have a makeover. You might get your greasy lipstick all over the mike. Besides, you are exerting your voice,not your face.

2) Do not change the way your hair drapes over your head several times during your song. It doesn't make sense.

3) Do not switch the position of your headset. It will affect the audio.

4) Do not bother to move gracefully. No one is supposed to be looking at you.