iConcertCal

You got to love free. iConcertCal is what it sounds like. It’s a free plugin for iTunes for both Windows and MacOSX and it allows you to synchronize your artists in your collection and a calendar where it can look up concert information. This allows you to personalize your music as well as keep up-to-date with the latest of your favorite artists when they’re in town.
Lifehacker < iConcertCal