The "Birthday Red" sing a ma jig is the counterpart of the red sing a ma jig but has blue square eyes, a yellow party hat, a dark blue nose and the same color mouth as the midnight one. He has the same voice as the "New Red" sing a ma jig, and the same feet as the big one from the dark blue duet. He sings "Happy Birthday" like all Birthday sing a ma jigs. He signs on and enters song mode the same way as the new red but signs off by saying "Happy Birthday!"
