tDark Red with Orange Puppy is a fanmade Sing-a-ma-jig Duet. The big one is the same shade of red as the New Red Sing-a-ma-jig, has pink hair, the same ears as the Lemon Sing-a-ma-jig, blue circle eyes, a nose that is the same color as the mouth of the Ghost Sing-a-ma-jig, a green mouth, the same hand pose as the right arm of the Skeleton Sing-a-ma-jig, and the same feet as the yellow "Tutti Frutti" Sing-a-ma-jig. The little one is orange, has the same ears as the little one from the Sea Green Sing-a-ma-jig Duet (but dark green), hot pink circle eyes, a yellow nose, a green mouth, a dark green tail, the same arm pose as the little one from the Gold duet, and the same feet as the Orange Mini Sing-a-ma-jig. They sing "Home on the Range", but this time they sing the whole song, unlike the Yellow Sing-a-ma-jig and Yellow Mini Sing-a-ma-jig. The big one has the same voice as the yellow one, while the little one has a voice mix of the big one and little one from the Dark Blue duet while signing on, entering song mode and signing off in the same voice as the little one from the Orange duet. The big one harmonizes the same way as the Lawn Green Sing-a-ma-jig.
Here's how they sign on, enter song mode and sign off.
Sign On: Big One: "Hello!" Little One: "Howdy!"
Song Mode: Same as the Orange duet
Sign Off: Same as the Orange duet