Last week a trailer emerged online trying to convince that it’s the official teaser for Guitar Hero: Metallica. Many people online thought it was a fake because it looked like…well, kinda cheap looking.

Apparently it was real, because if you purchased Guitar Hero: World Tour, you can find the hidden video according to Gamespot. The trailer which can be seen on both the Xbox 360 and PlayStation 3 editions of the game, features the song ‘Master of Puppets,’ and ends with the slogan “Ride the Lighting, 2009.”

This will be the second Guitar Hero game released with a bands name in the title. The first band to do it was the Legendary band Aerosmith which came out earlier in the year.

As of now, Activision has yet to comment on anything about the game. But since it was featured in the new Guitar Hero — we figure it’ll take advantage of all the instruments included in Guitar Hero: World Tour. Check out the video above.