Beppo was a stuffed doll owned by Lois Lane as a child.
Beppo was a brown plush monkey in a red bellhop uniform. When its belly was pressed, it played "Pop! Goes the Weasel".
Twenty years later, Sam Lane brought Beppo to calm down the mutant Titano. Lois activated it, and the song calmed down Titano long enough for tranquilizer gas to work. Titano was dropped off on a far off island, and carried Beppo on a chain on his neck.