The Marmosets and the Papillons
Funny animal comic book parody of real band The Mamas and the Papas. To maintain continuity, Marvel sticks things into different alternate universes. The Earth populated entirely by cartoon animals is called Earth-8311, and is filled with wonderfully mediocre animal puns like this one, and Mick Jaguar.
The Marmosets and the Papillons are just mentioned in passing in Peter Porker, The Spectacular Spider-Ham, #14 (March 1987). Peter Porker is assigned to take pictures of an Ozzy Ostrich concert and hates it; nostalgic for the days of "good" music by bands like this one and The Rolling Storks.