Horrible rock puns aside, it's actually carved from concrete.

The Empire Rocks Back.

[technabob via TDWGeek]

An indestructable guitar that only the guitar hero of legend can wield.

Electronic music producer/performer Side Brain modded an old NES controller into a MIDI controller. The music you hear here is played live, with no loops. As a bonus, you can see how his controller taps would look if he were playing video games instead of actual music.

Maybe now we can finally lay to rest all those tedious "rock vs. electronic" debates. Compromise!