Lady Gaga, LL Cool J, and Katy Perry celebrate the nominees of the 2012 Grammys with a concert and after party; Robert Downey Jr. and Ben Stiller attends the 2011 BAFTA L.A. Britannia Awards - see what else is going on in L.A.! MORE>>
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Katy Perry• Robin Williams• Alan Cumming• Ben Stiller• Christine Taylor• Patti Stanger• Lupe Fiasco• LL Cool J• Lady Gaga• Les Moonves• Annette Bening• David Yates• morgan freeman• Amy Smart• Common• Valerie Simpson• Helen Mirren• Grandmaster Flash• Oliver Platt• David Guetta• Robert Downey Jr.• Usher• Warren Beatty• Shirley Maclaine• Helena Bonham Carter• Taraji P Henson• Nokia Theatre• David Heyman• Bruno Mars• Nicki Minaj• Felicity Jones• Barry Levinson• Alice Evans• Ioan Gruffudd• Nigel Lythgoe• Julia Jones• The Beverly Hilton• Neil Portnow• Grace Phipps• Priscilla Presley• Ever Carradine• Andrea Riseborough• Dennis Haysbert• 2012 Grammy Nominations Concert• Jason Aldean• Chris "Ludacris" Bridges• Jennifer Nettles• Kimberly Perry• Kristian Bush• Mele Mel• Mike Stoller• Neil Perry• Reid Perry• George Flanigen• Kofi Siriboe• Roshon Fegan• 2012 Grammy Nominations Concert After Party• BAFTA Los Angeles 2011 Britannia Awards• Herb Scannell• Jason Isaacs• John Lasseter• John Schlesinger• Lucy Davis• Taylor Hackford• Perrier-Jouet Celebrates Nola Singer's Jewelry Collection• Emily Procter• Danielle Panabaker• Nola Singer Jewelry