Whether you've been a huge fan of Nate Ruess since his Format days and have been following fun. since their inception, or you just like jamming to 'We Are Young' and 'Some Nights' on the radio, this contest is definitely for you. In the wake of the aforementioned hit singles and the success of their 2012 LP 'Some Nights,' PopCrush is offering up one lucky fun. fan two tickets to the trio's upcoming show in Chicago!

We are sending one winner and a guest on a trip to Chicago, Ill. to see fun. perform at the Riviera Theatre on Thursday, Nov. 15, 2012. We will provide round-trip airfare from the nearest airport to Chicago (with the winner and their guest arriving on Nov. 14, 2012 and departing on Nov. 16, 2012). We will also provide a two-night stay in a hotel (one room, double occupancy) and ground transportation from the airport to the hotel (as well as to and from the Riviera Theatre and back to airport).

But obviously, the best part of this prize package are the pair of tickets see fun. perform live and two meet and greet passes! Not only do you get to take in their amazing live show at the Riviera Theatre, but you also get to go backstage and meet Nate, Andrew and Jack in person! Oh, and did we mention you also get $500 spending cash? All the deep dish pizzas and Chicago dogs you can eat!

There are just a few rules for this contest. You (and your guest) must be 21 years of age or older to enter -- if not, your guest must be a legal guardian or a parent. You must also remember to bring along a valid U.S. driver’s license or ID if you end up winning. Finally, only one entry per person allowed, and you must be a U.S. resident in order to be eligible.

Enter your email address below to win this fantastic prize and you might be able to party it up with fun.! The contest will run from Sept. 1 at 10AM EST to Sept. 30 10AM EST, so make sure you enter before the deadline. Good luck! We will announce the winner on Oct. 2... stay tuned.

Win Two Tickets to See + Meet fun. in Chicago

Enter your email address below for a chance to win two (2) tickets to see fun. perform live in Chicago and to meet the band! Only one entry per person, and you must be a U.S. resident in order to be eligible to win. Entry must be received by Sept. 30, 2012, at 10AM EST. Be sure to read PopCrush's official contest rules. By entering this contest, you agree to receive daily PopCrush newsletters. You may unsubscribe any time.

Watch the fun. 'Some Nights' Video