Green Day has challenged Nokia Music and AT&T to find their biggest fans for a chance to win tickets to see Green Day Live in New York City on Saturday, September 15th. Start tweeting, tagging, and checking-in (you’re doing it anyway, right?) to rack up points and win Green Day gear, killer Nokia phones, and two tickets to the concert (travel and accommodations not included). Think you’ve got what it takes? Click here to enter for a chance to win!