If you've ever dreamed of running away and joining the circus, December 1 is your night. Assuming, that is, you're near New York's Times Square and you are a [artist id="501686"]Britney Spears[/artist] superfan. A post on Brit's MySpace page invites her supporters to be part of "Britney's Greatest Fan Contest & Birthday Celebration," asking them to congregate outside the Virgin Megastore in Times Square to celebrate the release of [article id="1594761"]Circus,[/article] which hits stores December 2. At the event, Britney will be looking for her biggest fan, so contestants are being encouraged to "sing, dance, imitate or even profess their love for Britney Spears."

The winner -- to be determined by a panel that includes Heatherette's Richie Rich, Daniel Vosovic of "Project Runway" and other guest judges -- will get a pair of tickets for Britney's [article id="1598046"]"Good Morning America" performance[/article] at the Big Apple Circus on December 2. Sign-ups for the contest begin at 9 p.m. that night, and the contest will run from 10 to 11:30, with contestants also getting a chance to score some autographed items.

"Afterwards, help us celebrate Britney's Birthday with a countdown to midnight for the release of her new CD," read the post. "Cupcakes to the first 100 fans to purchase the CD from Billy's Bakery. Special guest DJ Xavier will be spinning Britney mixes and tunes all night long with your hostess for the evening, 'America's Got Talent' 's Shequida!" That afterparty will last until 1 a.m.

And that's not the only Britney contest that's going on. Britney.com and Buzznet are sponsoring a Photoshop contest in which fans are invited to slip themselves into one of Buzznet's Circus-themed layouts, with the singer's label judging the best efforts and awarding a popcorn machine and other Britney-related prizes. And if none of that floats your boat, since Spears' birthday happens to be December 2, she's also invited fans to sing "Happy Birthday" to her and post it on YouTube. The winning entry may get posted on Brit's YouTube channel.

Getting pumped about the Britney Spears documentary? Share your thoughts by uploading a video to YouRHere.MTV.com, or sound off in the comments section below. "For the Record" airs Sunday at 10 p.m. ET on MTV.