Slender Man/Music

"Slender" (VOCALOID)
Slender Man appears in the song/music video "Slender", produced by Apple-P, and performed by VOCALOIDs Miku Hatsune, Luka Megurine, Rin Kagamine, and Len Kagamine. The song is based off of Slender: The Eight Pages and is from the perspective of of the group of characters trying and failing to escape.

"Slenderman" (Sable)
Slender Man is the basis for the 2012 instrumental track "Slenderman" by artist Sable. Though initially an instrumental track, the song became popular with lyrics added by YouTuber Zip Zipper, which remain a large part of the song's identity.

"Slenderman" (Lucas King)
"Slenderman" is an instrumental piano theme for the character composed and performed by Lucas King, and included as track number four on the album Creepypasta Themes. King stated that he "wanted it to sound spidery... uncomfortable and spidery".

VideoGameRapBattles
Slender Man appears as a recurring character in tracks produced by artist VideoGameRapBattles, which feature Slender Man, as based from his appearance in the Slender series, engaging in rap battles against other video game villains, including Herobrine, Freddy Fazbear from the Five Nights at Freddy's franchise, and Baldi from the Baldi's Basics in Education and Learning series.