Leitmotif/Pro Wrestling


 * Professional Wrestling's entrance themes could be considered a Fourth Wall breaking version of this. Even when wrestlers change entrance music, the new music generally has a lot of similarities to the old, unless the wrestler has undergone a massive character change:
 * The Rock went through eleven different theme songs during his time with the WWE, all built around the same melody.
 * Triple H has used two different theme songs in by the band Motorhead. The group Evolution, which was led by him, used yet another Motorhead song.
 * The melody of "The Game" is a heavy metal version of the Rock Rap "My Time" and the instrumental "High Brain Pattern".
 * Some wrestlers have specific sounds at the beginning of their theme that announce their arrival, such as glass shattering for Stone Cold Steve Austin, the tolling of a bell for The Undertaker (even during his "Bikertaker" phase), a machinelike countdown for Chris Jericho, and the phrase "You think you know me" spoken in a woman's voice for Edge. Other examples include the car crash sound for Mick Foley and the "WHOOOOOA-OOOH" for Cody Rhodes. These sometimes get removed after a Face Heel Turn, since they're an obvious cue for the crowd to cheer. And sometimes a sound effect or Catch Phrase will get added to the front end of a song once a wrestler gets over.
 * Some wrestlers keep it regardless of their current alignment. Jeff Jarrett for the entirety of his TNA career has his theme start with the same wailing guitar riff to this day and Edge never lost the "you think you know me" once it stuck.
 * As Shawn Michaels said on an episode of Raw, while listing his various accomplishments: "I don't know if I've mentioned this lately, but I sing my own theme music!"
 * Commonly, when a new wrestler debuts, they're given their own generic music written by someone in-house. If they make it big, the core theme is then featured--usually as a guitar riff--when the theme is redone by a famous artist. This has happened with Chris Benoit, Kane, and Batista, among others.
 * Often subverted, particularly in regards to Diva Search winners. Also, WWE has a habit of recycling themes, as ECW wrestler Jack Swagger debuted on TV using Jamie Noble's old theme, then switched to "On Your Knees" by RATM tribute band Age Against The Machine once Lance Cade (who had used that theme prior) departed from the company. Another noteable re-debut, Christian, received a version of the theme he used just before departing ("Just Close Your Eyes" by Waterproof Blonde) redone by Story Of The Year.
 * When Christian went to TNA, he used a similar-sounding theme lifted from Evanescence's "One Last Breath".
 * Kurt Angle's WWE theme "Medal" was formerly the theme for The Patriot.
 * In a What Could Have Been, "Across the Nation", Raw's theme song from 2001-2006 was originally a leveled-up version of Test's theme.