Continuing with its line of "Hero" games, Activision has filed an application for a trademark for "DJ Hero." Again, a trademark application does not mean that a game is in development, only that the company is thinking about it.
DJ "Copycat" Hero
As deftly noted by 1up, this would not be the first time that a Western developer has borrowed one of Konami's Music game ideas. But then again, who ever heard of Guitar Freaks anyway?