Harmonix and MTV Games have released a demo of Green Day: Rock Band – featuring full versions of “Welcome to Paradise” and “Boulevard of Broken Dreams” for the Xbox 360 and the PlayStation 3.

These select tracks are featured in the soon-to-be-released Green Day: Rock Band and features full integration of motion capture band performances and the three-part harmony technology first introduced in last year’s award-winning The Beatles: Rock Band.

Green Day: Rock Band is currently available for pre-order and will ship in North America on June 8th, 2010 and in Europe on June 11th, 2010 on Xbox 360, PlayStation 3 and the Nintendo Wii.