Red Troopers – Dumb (Nirvana cover) Sep 12, 2015 Cover Dumb, Cover Grunge, Cover Nirvana, Cover Rock, Cover Troopers, In Utero, Nirvana, irvava – Dumb piano + guitar. Like 0 Thanks! You've already liked this « Troopers – Mein Kopf dem Henker! (Cover) » Trans Studio Bandung Gumboot Dance Cover Competition – 5 Troopers