Yes. Lots of info out there. You can use our API at Grooveshark available here: http://tinysong.com/api

You can also bulk download Discogs here: http://www.discogs.com/data/

And MusicBrainz has one here: http://musicbrainz.org/

You can also bulk download wikipedia, cross reference page titles with a set of artist names, and grab whatever information you want if your Regex skills are magical.

A general word of caution: User-sourced music information is very very messy. Be prepared for a lot of mispellings, bad metadata, missing information, etc.