Light Green is a fanmade Sing-a-ma-jig. He is light green, has blue hair, the same ears as the Santa Sing-a-ma-jig, black circle eyes, a pink nose, a yellow mouth, the same arm pose as the Santa Sing-a-ma-jig, wears a shirt that is somewhat similar to the Orange one's shirt, the same feet as the Snowman Sing-a-ma-jig, the same vocie as the Midnight Sing-a-ma-jig and he sings "Three Jolly Fishermen". He signs on by saying "Hi There!", enters song mode by saying "Let's Sing!" and signs off by saying "Bye Bye!".