Musical Stuffed Animal Frog "Fever Frog" Singing "Fever". Fever Frog doesn't know if he's got a cold coming on or got hit with the love bug! You decide! He sings and moves along to "Fever"! Singing frog "Fever Frog" is not sure what he has. He dances and sings "Fever. " Fever Frog" is a cute musical frog singing. This frog stuffed animal is adorable and entertaining. Frog stuffed animal "Fever Frog" is 12"