Go HERE for more photos by Alex Plank and tag yourself and your friends!

With surfboards decking the halls, Santa posted on the patio with ocean breeze in his beard and not a single ugly Christmas sweater in sight, Charlotte Ronson and jcpenney threw a very L.A-style holiday party Tuesday night, celebrating her I Heart Ronson line. As twin sister Samantha Ronson kept the party tunes flowing, see how I Heart Ronson got guests who swung by The Bungalow into the holiday spirit. More>>

Josh Brolin, Seth Rogen and Barbara Streisand walk the red carpet at The Guilt Trip premiere; Samantha Ronson, Rashida Jones, Benji Madden and many more help Charlotte Ronson celebrate I Heart Ronson for jcpenney; Chelsea Handler, Andre Balazs, Susan Sarandon and Whitney Cummings play ping pong at the grand opening of SPiN Standard Downtown—get caught up on Tuesday's top events in this edition of Last Night's Parties.

Go HERE for more photos by Alex Plank and tag yourself and your friends!

With surfboards decking the halls, Santa posted on the patio with ocean breeze in his beard and not a single ugly Christmas sweater in sight, Charlotte Ronson and jcpenney threw a very L.A-style holiday party last night celebrating her I Heart Ronson line. As twin sister Samantha Ronson kept the party tunes flowing, see how I Heart Ronson got guests who swung by The Bungalow last night into the holiday spirit.

Common performs for Olivia Munn and Kim Kardashian to celebrate the USA Basketball team and Jeep; Will Ferrell, Michael Chow and other big supporters of LACMA attend the annual Collectors Committee dinner gala and view the new works of the permanent collection; Tobey Maguire, Ben Affleck and more show support for arts education at the Children Mending Hearts Spring Benefit; Ian Somerhalder hosts a private charity dinner event in Bel Air; Johnny Knoxville, Julie Bowen and Anthony Kiedis celebrate Earth Day at the Annenberg Community Beach House—it was another busy weekend of events and fundraisers here in L.A. and we have the details on what went down in this edition of Last Night's Parties. More»

Go HERE for more photos by Casandra Campeas and tag yourself and your friends!

How do cool parents celebrate Earth Day with their kids? With live performances by very famous musicians, edible art projects, fossil digs, manicures and DJ lessons on the beach in L.A., as was the case at the book launch of Last Night I Swam With A Mermaid yesterday at the Annenberg Community Beach House where hip moms and dads like Julie Bowen, Jason Bateman, Johnny Knoxville and others stepped out for the family friendly occasion. More»

Jennifer Morrison, Nick Nolte and Aussie import Joel Edgerton step out for the Hollywood Premiere of Warrior; rising talents Rooney Mara, Amy Ferguson and Brie Larson celebrate their indie project written and directed by Diane von Furstenberg's daughter Tatiana; CBS celebrates fall TV with the premiere of "Criminal Minds" at PalyFest 2011 in Beverly Hills—NYC is buzzing with fashion but here in L.A., Tuesday night was all about the business of show. Get the details on everything that went down in this edition of Last Night's Parties. [Brie Larson, Amy Ferguson, Rooney Mara photo via] More»