Last Night's Parties: Jeremy Piven, Lauren Conrad, Derek Hough Hit Sayers; Cocktails Flow At BlackBook Midnight Mixologists; Minx Society Takes Over Tropicana & More!

by Emily Green · September 30, 2011

Bridget Marquardt and Shoshana Bush step out for BlackBook's Midnight Mixologists; Minx Society hosts a One Year Anniversary at Tropicana with a surprise synchronized swimming performance; Juno Temple and Abe Sylvia answer questions about their film at a special screening of Dirty Girl;

Jeremy Piven, Lauren Conrad, Kevin Connolly and more hit The Sessions at the Sayers Club—get all the details on how L.A. warmed up for the weekend on Thursday in today's edition of Last Night's Parties.

[Top photo via BlackBook]