Cannot sing, but has fun trying anyway:

Aries, Taurus, Cancer, Virgo

Actually a great singer, but would rather die than admit it:

Libra, Scorpio

Would rather be shot than caught singing:

Aquarius, Sagittarius, Capricorn

Sings like an actual angel:

Gemini, Leo, Pisces  ** I mean I don't know if I'd say 'angel' but who knows, none of you have heard me sing