This is a really interesting chart that correlates taste in music to SAT scores:

Virgil Griffith, popularly known for the Wikipedia Scanner that detects where the Wikipedia edits are coming from, maintains another very interesting project that maps musical tastes of college students with their intelligences levels (determined by their SAT score).

The x-axis represent the SAT score while the colored boxes indicate the music genre and the artist / composer.

Of course, SAT scores are not a direct measure of intelligence, but it is a directional indicator.

Check out the full size charts here.