Lest Billy Kelly think he has the market cornered on self-referential kids music, I would remind you that DC-area band Rocknoceros pioneered the genre with "Trying To Write A Song," from their self-titled debut (review). I know that Rockno's bread and butter are their more direct tunes, but it's the gems like this that lets the parents keep the CD in the player. The sound on this isn't the best (it does get a little clearer as it goes), but it's Friday and I haven't had a chance to finish the other things I'm working on...
Rocknocers - "Trying To Write A Song" (Live) [YouTube]