Today's the big day, May 15th, the day we've been waiting nearly 5 years to celebrate. Green Day's new album is officially in stores and available online to purchase. Visit iTunes where you can order the Deluxe Version, which includes 2 extra b-sides ("A Quick One While He's Away" and "Another State of Mind") or Amazon.com where they're having a special release by making the entire album available for download at only $4.99.

Some local record stores are also selling the album today with a special lithograph (poster), but you'll have to check the local shops around your area to find out.

Lets help make Green Day take over Twitter today. For all of you who use Twitter, end every Green Day-related update with #GreenDay.