"Gears of War" is a song by the American thrash metal band Megadeth.

It was released as a promotional single from their tenth studio album United Abominations (2007).

[7] Megadeth performed the track live as headliners of Gigantour, a twenty-five stop metal tour sponsored by Microsoft as part of the promotion for the game.

[8] Microsoft held a contest which, if won, you would get to try the game early, and would have the opportunity to see a private concert, which the song's American live debut was.

[9] Production and performance credits are adapted from United Abominations liner notes.