http://www.gamerchip.com/exclusive-guitar-hero-content-for-xbox-360-announced/

Exclusive content continues to be the tug-of-war across the consoles, with Metallica, who were the first to wade into the online music war, now supporting the idea through exclusive Xbox 360 content.

Best Buy shoppers will receive “exclusive bonus tracks” for Guitar Hero III when they purchase a copy of the new Metallica album, Death Magnetic. Although the tracklist has not been revealed, punters could be pretty well assured there will be more screaming guitar than four part haromony.

Being Xbox 360 exclusive, you could safely say that this is also an exclusive for the Microsoft console version of Guitar Hero: World Tour, seeing as it will be backward compatible with Guitar Hero III tracks.

YAY for the 3 people who actually care....

M$ why waste money on exclusive DLC for such games....get RE 5 exclusive DLC to make a big difference......and first of all get the GTA IV DLC out.

You are either too young or too ignorant for not knowing what "Metallica" means. I suppose you are not one of the dozens of millions who bought "Black Album" for example...
Oops, sorry! 16 year old alert!
For those who care "Death Magnetic" sounds (based on the three tracks I have listened to) much more interesting and heavy than any Metallica studio effort for the past 16 years.

Awesome, I guess.

:/