Disturbed's David Draiman Sings "Immortalized" Like a Chipmunk

Disturbed posted this fun video on their Facebook page of the band warming up backstage in Glasgow. What's so strange about that you ask? Well, frontman David Draiman delivers his vocals in a high-pitch tone like he was a member of Alvin and The Chipmunks. 

While we're not sure if Draiman used helium or just can sing that high of their warmup of "Immortalized", it's awesome to see the band have this much fun on the road. The only clues the group provided are in the description of the video, saying "We warmed up for the Glasgow show with a fun "Chipmunks" version of "Immortalized". Enjoy!" Watch the video above.