You'll want to watch the video above. It's of the Arcanite Ripper, a new drop from the boss Tenris Mirkblood in Karazhan. Tenris has appeared as part of the world event leading up to the release of Wrath of the Lich King. The Arcanite Ripper is a throw back to the old Arcanite Reaper. Except this one has a cool new ability.
Right click on the Ripper, and you'll become a rocking out skeleton. You're a one man LVL70 Eelite Tauren Chieftain. With this little axe, World of Warcraft now becomes Guitar Hero.
The video above is a quick fraps I put together with my long time WoW friend Telanis. He's hanging out in Ironforge, getting his rock on.
And you better believe it baby, he's rockin' your socks off.