In a recent filing to the Securities and Exchange Commission (SEC), Activision has let it slip that Aerosmith won't be the only band to get a dedicated Guitar Hero game. Metallica is set to receive it's own entrant into the rapidly expanding franchise sometime in the near future with Guitar Hero: Metallica. No further details aside from the title were revealed but given Activision's history of sharing the love, you can expect to find it on numerous gaming platforms.

According to the document, "In fiscal 2009, we [Activision] plan to publish Guitar Hero: On Tour for the NDS; Guitar Hero: Aerosmith, Guitar Hero: Metallica, and Guitar Hero IV across multiple platforms."

Activision's fiscal year ends on March 31, meaning you'll see Guitar Hero Metallica on store shelves before that date in 2009.