Proto-Pepes? Well, I guess they could be. Thing is, these seem to be Russian frogs (Hillary, call your office!), and the song — "Kalinka" [link] — is in French, and the boy and girl seem to be Pinocchio and Mari-Lou of Hungary, somehow. Check that out with the song lyrics here [link].
Maybe Pepe just shows up wherever he's needed on Earth. Like Barbarossa or King Arthur or Bugs Bunny. Great song, "Kalinka."