In the episode where the kids are taken to the doctor for their shots, all three are very nervous and come up with ways to deal with the fear. Iggy mentions that the only thing that helps him relax is listening to his favorite hip-hop tape by the "Leapin' Lizards", so the doctor agrees to let him take his Walkman into the doctor's office. Gloria and Jacob then hear Iggy shouting: "Ow, wow!" and they become frightened, thinking Iggy is screaming in pain - until both Iggy and the doctor emerge from the office, wildly slam-dancing and rapping: "Ow, wow! Leapin' Lizards is the one!"