Chief and Rockapella in “Unfinished Business”

And this is Top Grunge, Carmen's bad biker burglar who grooms with chain grease.

(singing) Top Grunge

His last known whereabouts: Zaire, home of the Eastern Lowland gorilla. These gentle quiet animals have only one real enemy: people. In past years, people hunted them as trophies, and now people are cutting down the forest to make room for houses and farmland. The gorillas are being forced from their jungle home and right to the edge of extinction, and today their problems just got worse. Top Grunge, that slimy primate, zapped into Zaire, and glommed every gorilla. He wants a gang that's hairier than he is. Gumshoes, you got to stop him, corral Carmen and bring in that...

(singing) Woo-woo-ooo-oo

...LOWLAND LOWLIFE!