Girls Season 2 Premiere Party Celebrity Pictures in NYC

Lena Dunham and Allison Williams were joined by their castmates and quite a few celebrity friends when they premiered the second season of Girls in NYC yesterday. Lena wore a strapless Valentino jumpsuit while Allison wore an Altuzarra ensemble. Zosia Mamet and Jemima Kirke, who gave birth to her second child seven weeks ago, hammed it up with their co-stars on the red carpet while the men of Girls — Adam Driver, Christopher Abbott, Andrew Rannells and Alex Karpovsky — took photos together. Solange Knowles also attended the event along with HBO stars like Michael K. Williams and Steve Buscemi.

The cast and Lena in particular have been in the press quite a bit lately as they promote the new season of their hit series, which premieres in Australia on Monday, Jan. 14 on Showcase. Lena recently opened up about her awkward teenage years, saying she didn't have any friends and was a "chubby teenager." Despite her pre-Girls troubles, Lena is enjoying the success of her HBO show, including a nomination at Monday's Golden Globes.