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The Smashing Pumpkins‘ new song “G.L.O.W.” will make its debut exclusively via Guitar Hero: World Tour. “G.L.O.W.” will be packaged with two other SP songs — “1979″ and “The Everlasing Gaze” — as a three-song download for the newest installation of the Guitar Hero series, due out this fall. Billy Corgan will also appear as a playable character when users attempt to tackle Siamese Dream’s “Today.” No word yet on how non-gaming fans will be able to download the song. The “G.L.O.W.” acquisition is the latest weapon in the battle of Guitar Hero vs. Rock Band 2, with GH thus far recruiting new instruments, Metallica’s Death Magnetic and Jimi Hendrix while RB has countered with “Guns n’ Roses’ Shackler’s Revenge,” full album downloads and the “biggest soundtrack ever.”

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