This is what he looks like.
Gold is a fanmade Sing-a-ma-jig. He is mostly yellow, has the same ears as the Tangerine Sing-a-ma-jig, has circle eyes which are the same color as the snowman Sing-a-ma-jig, has a green nose, a red mouth, the same arm pose as the pink "Girls Just Wanna Have Fun" Sing-a-ma-jig, has the same feet as the fairy Sing-a-ma-jig, has the same shirt design as the Tangerine Sing-a-ma-jig but its green with purple, orange and blue stripes, has the same voice, sign on, and sign off as the little one from the Royal Blue duet, enters song mode by saying "Let's Sing!" and he sings "Rain Rain Go Away".