The yellow with red teddybear sing a ma jig duet is a fanmade duet. The big one is yellow with the same ears as the big one from the red sing a ma jig duet, has blue eyes with eye lashes, a blue nose and a green mouth. The arm is the same pose as the reindeer while the hand is the same shape as the witch. Her feet are the same as the teal sing a ma jig. The little one is red with the same ears as the little one from the orange sing a ma jig duet, green square eyes, a green nose and a blue mouth. His hands are the same shape as the little one from the orange duet, and also the feet. The big one has the same voice as the big one from the Red duet while the little one has the same voice as the Little One from the Orange duet and they sing "This Little Light Of Mine" (worldwide), and the Japanese version sings "The Farmer in the Dell" with the same voices as the fanmade Wisteria duet. This is the only duet to sing 2 songs.
Sing in: Big One: "Hello!" Little One: "Hi!"
Song mode: Both: "Song!"
Sign off: Both: "Bye Bye!" (Little One first)