Silverchair Cover ( Undecided – Acustico ) Sep 12, 2015 Cover, Cover Grunge, Cover Rock, Cover Silverchair, Cover Undecided, Frogstomp, hi-end CD 2, Banda Faultline tocando Undecided Acustico. Like 0 Thanks! You've already liked this « Dir en Grey Cover- Undecided » Undecided-(Silverchair Cover)