[Kirsten Dunst, Elle Fanning via] Emily Blunt, Kate Beckinsale and Colin Firth have date night at the opening of Stephen Merchant's new comedy show on La Cienega; Elle Fanning hosts an intimate dinner at Chateau honoring the Rodarte sisters with Kirsten Dunst, Sophia Coppola and others as guests; The Butterfly Gala takes over the SLS for a night of fashion appreciation and cocktails to benefit Children's Hospital Los Angeles—while most were still pooped from the Golden Globes, see which notables made it out to play last night around town in this edition of Last Night's Parties. More»

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Saturday night, a mix of young Hollywood stepped out for Give Back Hollywood Presents: The Xbox Miracle of Music Benefit in honor of the 2011 American Music Awards. Hosted by Kevin Jonas, the night featured the DJ stylings of Tom Cruise and Nicole Kidman's son Connor Cruise (AKA DJ C-Squared), plus a live performance by AMA winners Hot Chelle Rae. More»

Perrey Reeves, Lisa Rinna, Ozzy and Sharon Osbourne step out to a Beverly Hills soiree to support Holly Robinson Peete and Rodney Peete's charity for those living with autism and Parkinson's disease; Jaime King and Nicky Hilton are joined by Emma Roberts, Jason Schwartzman, Pete Wentz and more at Soho House in the effort to fight cancer; AnnaLynne McCord joins Somaly Mam at the SLS to help launch a new global campaign to end human trafficking—this weekend, L.A. was all about supporting a bigger cause and we have all the details on the various star-studded philanthropic events in today's edition of Last Night's Parties. More»