Fozzie Bear does not appear in this show.
Though the song is, nowadays, more closely associated with Marilyn Monroe, Carol Channing introduced the song "Diamonds are a Girl's Best Friend" in the original Broadway production of 'Gentlemen Prefer Blondes.' Monroe played the part in the movie adaptation.
The Cecilia Sisson character originated from the 1961 musical comedy revue Show Girl, which starred Carol Channing. The revue was written primarily by Charles Gaynor, with additional sketches by Ernest Chambers. Channing performed the Cecilia Sisson routine numerous times throughout her career.