"Underwater March" is a musical theme credited to Klaus Badelt (with Hans Zimmer's assistance) for Pirates of the Caribbean: The Curse of the Black Pearl. It appears as track thirteen on the film's soundtrack, at 4:12 in length. The first part of the track underscores the death of Hector Barbossa and the cursed crew's defeat onboard HMS Dauntless, while the second part is heard during the titular "underwater march", which, chronologically, occurs prior to the opening of the track.