Last Night's Parties: Lady Gaga Performs; Ben Stiller, Robert Downey Jr. Step Out For BAFTA & More!

by guestofaguest · December 1, 2011

Lady Gaga, LL Cool J, and Katy Perry celebrate the nominees of the 2012 Grammys with a concert and after party; Amy Smart and Patti Stanger step out for the launch of a new jewelry collection at private cocktail party in Beverly Hills; Robert Downey Jr., Helen Mirren, Warren Beatty, Ben Stiller and others attend the 2011 BAFTA L.A. Britannia Awards—Miami is popping off with Art Basel, but there was still plenty of action in L.A. on Wednesday, so get all the details in this edition of Last Night's Parties.

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[Ben Stiller, Christine Taylor photo via]

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