5. Alexander Wang's Secret Party at Pier 40

When: Saturday, Sept. 10th, 2011

Where: Pier 40

Who was there: Christina Ricci, Jared Leto, Penn Badgley, Bam Margera, Arizone Muse, Karlie Kloss, Zoe Kravitz and Natasha Poly.

Other details: Alexander Wang gets the award for the best themed party of the season with a "college frat" party theme. He threw the party together with Love magazine with the mayhem of any college rager, including Jell-o shots, glow sticks, and a special performance by Tyler the Creator. The frat boy theme went even further -- the designer played Playstation's new game set with actress Christina Ricci (above).