Julian Signing "Colors of the Rainbow"

For those of you unfamiliar with the song "Colors of the Rainbow" from Signing Time, it goes like this:

Do you know the colors of our rainbow?
Do you know the colors of our rainbow?
There's red, orange, yellow, green, purple and blue
(clap, clap, clap, clap)
Do you know the colors of our rainbow, too?

Well, as of now, Julian can only sign RED and BLUE, and an approximation of YELLOW and COLOR, but since he has echolalia, the boy can repeat. I'd like to share with you a boy who was never supposed to talk singing a song.