This is a fanmade duet. The big one is lilac with circle eyes, the same ears as the swimming sing a ma jig, pentagon eyes, a blue nose and a lilac mouth and has the same hands and feet as the all star sing a ma jig. and the little one is the exact same as the little one from the Electric Blue duet but is dark green with circle eyes a yellow nose and a red mouth. This duet sings "We Love the Mountains", because they are a duet.
Here is how they sign on, sign off and enter song mode:
Sign on: Both: Hey you! (1 at a time)
Song mode entry: Big one: Time to sing! Little one: Sing it.
Sign off: Big one: So Long! Little one: Bye bye.The big one has the same voice as the hits series' red singamajig and the little one has the same voice as the teal singamajig.