Panic! At The Disco have contributed their track Mercenary to the soundtrack of upcoming new game Batman: Arkham City.Fans can hear the track over here.Other bands included on the soundtrack include The Damned Things, Crosses, Serj Tankian and Coheed And Cambria.Speaking to PunkNews, Coheed vocalist Claudio Sanchez said:"I write in a very conceptual format with the stories that surround Coheed And Cambria, but Batman has a much larger, defined history and rules that go along with it. My goal was to find universal themes from Batman's existing history to help give the lyrics legs and dimension so that the song could live within that world."The soundtrack will be released next month. The full track-listing is as follows:Panic! At The Disco - MercenaryCoheed And Cambria - DerangedThe Duke Spirit - CreatureBlack Rebel Motorcycle Club - Shadow On The RunBlaqk Audio - AfterdarkThe Raveonettes - Oh, StrangerCrosses - The YearsThe Damned Things - Trophy WidowDaughtry - Drown In YouThe Boxer Rebellion - Losing YouSerj Tankian - Total ParanoiaA Place to Bury Strangers - In The Shadow (on the Bonus Collector's Edition)