Staring at the demon they just summoned

Aries

Ini 

Sings like an angel

Scorpio

Libra

Pisces

Sings extremely loudly irregardless if they sound good or not

Aqua

Leo

Gem

Sings the translated version

Saj

Taurus

Capricorn

Doesn't sing in the first place

Tauros

Cancer 

Virgo