Astronaut is a fanmade Kohls Exclusive Sing-a-ma-jig. He is electric blue, has an astronaut's costume, has same ears as the mint green one, wears an astronaut's helmet (which can be removed), has purple eyes, has a pink nose, a magenta mouth, the same arm pose as the Rose Sing-a-ma-jig, has the same feet as the teal, has the same voice as the singing of the robot and he sings "Fly Me To The Moon". He signs on by saying "Greetings!" in a in a natural (normal) voice, enters song mode by saying "Prepare to Sing!" in the robot's singing voice and signs off by saying "Farewell!" in a normal voice.
1. Astronaut

This is what he looks like.