There isn't one. CalArts doesn't participate in any of the sporting matches against other schools and usually doesn't compete often as a school in competitions (Although lots of individuals do...
From what I can find they don't have one. I am doing a report and have been searching for a while. Sorry if my answer is wrong. Here is their website http://www.artinstitutes.edu/dallas/ .
The Art Institute of Houston - like all of the other over 45 Art Institute colleges across the USA 0 has no sports teams or athletic programs. Therefore, they have no fight songs.