Oddly enough, the lavendar AM in the song is referred to as "Little Chrissy", a name also used for the lead singer in "Chris and the Alphabeats". Also, the orange AM refers to himself as "Big Jeffy".
Maybe the Workshop couldn't find a parka big enough for the fat blue AM.
I happened to find an mp3 of it from the "Little Jerry Yahoo Member Group". Unfortunately it's been taken down now since the "group leader" stepped out, but luckily I typed the lyrics out.
I'll try to get them here soon.