[Britney Spears reflects on the last year]

Go HERE for more photos from this event by JERRITT CLARK and TAG YOURSELF and your friends!

Britney Spears brought quite the circus into town last night to help celebrate her 27th Birthday.  The event which was highly promoted and anticipated, was supposed to begin at midnight (so said all of the invitations), but apparently her actual private bday party started at 10pm and ended at midnight, leaving a lot of Brit's fans disappointed as she bailed right at midnight like Cinderella.  Our insider Jerritt Clark headed over to the event with Micah Jesse after stopping by the GQ event at Louis Vuitton, and happened to catch the pop star just in the nick of time.

More photos below: