A subtrope of SignatureSong. While the article SignatureSong is devoted to the most famous and recognizable songs by real life musicians this article is devoted to the signature songs of specific individuals and fictional characters.

As a RunningGag some characters tend to be singing or humming the same kind of song whenever they appear in view, on screen or within earshot. The song might not have been written by them personally, but they like singing it anyway. In this sense it becomes one of their characteristic trademarks. Sometimes other characters might get annoyed.

Not to be confused with an actual SignatureSong (the most well known song by a musician) or a {{Leitmotif}} (an introductory melody heard whenever a specific character appears).

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!!Examples of this trope can be found in:

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[[folder:Comics]]
* SuskeEnWiske: Tante Sidonia often sings or hums the song ''"Ons Hutje Bij De Zee"'' (The Dutch translation of the song ''"Our Cottage By The Sea"'')
* ''Franchise/{{Tintin}}'': Bianca Castafiore is usually seen and heard performing the Jewel aria from Charles Gounod's opera ''"Faust"''.
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[[folder:Films -- Live-Action]]
* ''Film/{{M}}'': in Fritz Lang's ''"M"'' (1931) Hans Beckert always eerily whistles EdvardGrieg's "In The Hall Of The Mountain King" when he goes somewhere.
* ''TurkishDelight'' (''TurksFruit''): Olga's father enjoys singing along with Strauss' ''"Radetsky March"'', only adding the words ''"Tits & Ass"'' to the refrain.
* ''Film/TwoThousandAndOneASpaceOdyssey'': Hal9000 will forever remain associated with the song "Daisy Bell".
* ''Film/{{Casablanca}}'': "As Time Goes By"
* ''Film/AClockworkOrange'': Despite being a Beethoven fan Alex is seen singing "Singin' In The Rain" twice. It's this that causes him to be recognized by one of his former victims.
* ''Film/KickAss'': Hit-Girl is associated with the songs "Banana Splits" and "Bad Reputation" mainly because they were played in two of her {{Signature Scene}}s.
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[[folder:Live Action Television]]
* ''Series/SesameStreet'': "C Is For Cookie" by Cookie Monster.
* ''Franchise/TheMuppets'': Kermit's "It's Not Easy Being Green".
** The Swedish Chef is also seen and heard humming the same melody whenever he is cooking.
* ''Series/TheFreshPrinceOfBelAir'': Carlton adores dancing to Music/TomJones' "It's Not Unusual".
* ''Series/HappyDays'': Richie Cunningham likes to prepare for dates by singing Music/FatsDomino's "Blueberry Hill".
* ''Series/HowIMetYourMother'': Robin Scherbatsky's own song "Let's Go To The Mall" which she sang when she was still an IdolSinger.
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[[folder:Western Animation]]
* WesternAnimation/{{Goofy}} usually hums ''"The World Owes Me a Living"''.
* The Disney/ThreeLittlePigs in the Disney short cartoon sing ''"Who's Afraid of the Big, Bad Wolf?"'' throughout the entire cartoon.
* ''WesternAnimation/LooneyTunes'': Michigan J. Frog's "Hello My Baby"'' from the short ''WesternAnimation/OneFroggyEvening''.
** FoghornLeghorn would often by singing or humming "Camptown Races."
* ''TheHuckleberryHoundShow'': Huckleberry Hound enjoys singing ''"Oh My Darling Clementine"''.
* ''WesternAnimation/SouthPark'': Cartman was zapped in the debut epsiode to sing ''"I Love to Singa"'', much to his own annoyance.
* ''FamilyGuy'': Peter Griffin is obsessed by ''"Surfin' Bird"'' by the Trashmen.
* ''WesternAnimation/{{Futurama}}'': Fry is sometimes heard singing ''"Walking on Sunshine"'' by Katrina & The Waves.
* ''WesternAnimation/TheSmurfs'': In the 1980s TV cartoon series the Smurfs are often singing the ''"La La La La La"'' song.
* Several '50s Creator/TexAvery shorts featured a Southern Wolf character(voiced by DawsButler using a similar voice he would later use for HuckleberryHound) who always whistled the Civil War-era folk hymn ''"Kingdom Coming (Year of Jubilo)"''.
** Because of this, fans have nicknamed him Jubilo Wolf.
* In WesternAnimation/TotalDrama All-Stars the BigBad Mal loves to whistle ''"In the Hall of the Mountian King"''.
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