A singing fish (Actually named "Billy Bass") which became viral in 2008 after someone posted a Youtube video of an extremely broken one attempting to sing "Doo Wah Diddy Diddy" by Manfred Mann.
"Demon Possessed Singing Trout" lyrics:
There I was- Unintelligible
Singing Doo-Wah-Diddy-Diddy-Dum Diddy-Doo
Unintelligible
Singing Doo-Wah-Diddy-Diddy-Dum Diddy-Doo
Looked (voice crack) good, looked f- Unintelligible, looked fine, looked good- Demonic screaming
Singing Doo-Wah-Diddy-Diddy-Dum Diddy-Doo
Unintelligible
Singing Doo-Wah-Diddy-Diddy-Dum Diddy-Doo
Looked (Another voice crack) good, looked f- Unintelligible, looked (third voice crack) good, looked- More demonic screaming