Custom Facebook Applications for Music Artist

We build a lot of custom Facebook applications for all sort of large brands, non-profits and music labels. Like a website in the Web 1.0 era, Facebook applications are becoming  a staple of many online marketing campaigns, music artist included. There are a couple of example of Facebook applications (some build by ourselves and some by other folks) that give you an idea of the types of music artist facebook apps out there:

Good examples are hard to find, so if you know of any please share them via comments. Also been on the lookout for some very interesting music artist FB applications in the next couple of weeks including the beta of SuperFan, our music artist promotional tool for Facebook.