If you hold your microphone like this, do not blame the sound man if your voice is buried in the mix.
Never cover any part of the mic grille, as that degrades both feedback rejection and sound quality. The grille protects from rough handling and minimizes wind noise, but you can also think of it as a tactile barrier that alerts when you hold the mic wrong.
Is this how your vocal hero holds it? Now you can feel warm and cozy knowing that you are doing one thing better than your role model.