Not necessarily about stuttering itself but there is the song from Scatman (Ski-Ba-Bop-Ba-Dop-Bop), who himself stutters. Melo Makes Music also openly discusses his experience with stuttering. In his songs he addresses themes related to his stuttering and how it has impacted his life. I don't know if it's about stuttering, but the artist [Joe](https://www.google.com/search?q=joe+stutter+lyrics) made a song called "Stutter".