Blueberry is a fanmade Sing-a-ma-jig. He is blueberry colored, has the same ears as the Santa Sing-a-ma-jig, black circle eyes, a purple nose, a teal mouth, the same arm pose as the Yellow Sing-a-ma-jig, wears a green shirt with blue, yellow, purple and red stripes, the same feet as the Santa Sing-a-ma-jig, a bass-tenor voice with a latin accent and he sings "Tingalayo".
Sign in: Hola Amigos. That means, Hello Friends.
Song mode: Here's a songSign out: Same as lemon