Most of the songs on the website, really. The Brothers Chaps, apparently aware of this, released quite a few music video cartoons before their expansive hiatus.
Coach Z is an absolutely dreadful rapper nine times out of ten, but there are some occasions in which he succeeds in busting some fresh rhymes. Case in point, "These Peoples Try To Fade Me".
While the song itself is unrelated to Homestar Runner, the music video for They Might Be Giants' "Experimental Film" was done by none other than Strong Sad and The Cheat.
Two puppets voiced by They Might Be Giants try and get Strong Bad to "come down from his Crystal Fortress", whatever that means. Strong Bad, naturally, isn't having any of it.
There's no real context as to why it's happening, but "One, Two, One, Two" is most definitely a jam.
Taranchula release their new hit single "Trudgemank", featuring a surprise appearance by Peacey P.
The full version of "The Cheat is Not Dead" starts out just as catchy as it was in SBEmail "Caper". Then the second half comes along and things start getting absolutely ridiculous.
The unnamed song that the all-girl metal band Advantage sings in "The Limozeen Advantage" (a short from one of the now-discontinued DVDs) is brief, but man is it catchy.
"Kooky Moonlight" is a spot-on Affectionate Parody of 1970s mystery-solving cartoon musical numbers while being a rather catchy tune in its own right.