Reese Witherspoon, Chris Pine and Tom Hardy attend the premiere of their new movie This Means War at the Grauman's Chinese Theatre; Lana Del Rey performs at the Grammy Awards' Producer's and Engineers Wing Event; The Jonas Brothers and Bryan Greenberg kick off "Rock The Vote" at Fred Segal; Essence Magazine honors Kelly Rowland and Sylvia Rhone in the 3rd annual Black Women In Music Event; Courteney Cox and the cast of "Cougar Town" attend their premiere screening in Beverly Hills; The Grammys celebrate themselves with a Grammy Glam party featuring Erykah Badu and DJ Spinderella—the parties kept on rolling through Tuesday and Wednesday here in Los Angeles and we've got the details on what went down in this installment of Last Night's Parties!

[Tom Hardy, Reese Witherspoon, Chris Pine via]

Paris Hilton Kristin Cavallari Ne-Yo Chris Pine Reese Witherspoon Will.I.Am Michelle Williams Monet Mazur. Sophia Bush Mary J. Blige Kelly Rowland McG Bai Ling Sean Combs Alek Wek Joe Jonas Kevin Jonas Corbin Bleu Grauman's Chinese Theatre Dr. Dre Courteney Cox Brian Grazer Regina King Grammy Awards Chelsea Handler Perrey Reeves Bryan Greenberg MyHouse Sylvia Rhone Fred Segal Whitney Cummings Jake Pavelka Letoya Luckett Erykah Badu Jesse Williams Tom Rothman Abigail Spencer Taboo Spinderella Paley Center for Media Rock the Vote Colbie Caillat Ashlan Gorse Dawn Richard Dan Byrd. Belasco Theatre Melody Thornton Nigel Lythgoe Ian Gomez Jim Gianopulos Denyce Lawton Eva Marcille Holly Robinson Peete Dave Koz MC Lyte Neil Portnow Sheila E. Stevie Nicks Laura Vandervoort Tom Hardy Skylar Grey lana del rey Ledisi Zachary Gordon Meagan Tandy Josh Hopkins Essence Magazine los angeles premiere Grammy Glam Kerli Chris Williams Carmelita Jeter this means war producers and engineers wing event village recording studios Jimmy Lovine Jimmy Jam Robbie Robertson Lucian Grainoe Polow Da Don Josh Wolff Kirk Morrison Willie Gault Black Women In Music Event Sharon Leal Melanie Amaro Tamia Wayne Brady Constance White Toccara Jones cougar town Christa Miller Brian Van Holt Bill Lawrence Goapele Robyn Troup