Ryan Gosling, George Clooney [via]

Ali Fedotowsky and GUESS raise awareness for breast cancer; Christina Milian, Jaime King and Djimon Hounsou celebrate Kimora Lee Simmons' new gig at Sunset Tower; Melissa Etheridge kicks off Pinktober month with Hard Rock; George Clooney and Ryan Gosling are total smokeshows at the premiere of Ides of March; Julianne Hough, Ashton Kutcher and the Mayor honor Ryan Seacrest at the LA's Promise Gala—it was another eventful Tuesday here in L.A. so let's talk about it in this edition of Last Night's Parties.

Hard Rock CafeJulianne HoughJeremy PivenMarisa TomeiKimora Lee SimmonsAshton KutcherEvan Rachel WoodGeorge ClooneySamantha HarrisDjimon HounsouShenae GrimesStacy KeiblerRyan SeacrestMax MinghellaRandy JacksonJaime KingShailene WoodleyRyan GoslingJulie BowenGUESS by MarcianoShaun RobinsonCirque du SoleilKate MaraAntonio VillaraigosaJeffrey KatzenbergMelissa EtheridgeGeorge KotsiopoulosDJ Mr. BestAmber LancasterChristina MilianAdrianna CostaJulia SorkinRyan BestAli FedotowskyJohn SalleyDania RamirezJerry WeintraubJeffrey WrightIdes of MarchAshlan GorseJessica PasterKristine ElezajKodak TheatreStephen BishopPeter CherninAzita GhanizadaSusan G. Komen For The CureAmy PaffrathAmy RiderJames HerdaJacqueline EmersonDayo OkeniyiAndrea GabrielGUESS By Marciano And C Magazine Host T-Shirt Launch Party In Support Of Susan G. Komen For The Cure Hosted By Ali FedotowskyC MagazineNational Breast Cancer Awareness MonthKimora Lee Simmons JustFabulous EventJustFabulousDon ResslerGinger ResslerAdam GoldenbergJosh HannahDr. Susan EvansPatrick HerningKatie CazorlaSharon Pierre-LouisTina AldatzBill LeopoldHamish DoddsJessie PayoJess HudakPinktoberHard Rock Cafe HollywoodHard Rock's 12th annual Pinktober campaignIdes Of March PremiereAMPAS Samuel Goldwyn TheaterAMPAS Samuel Goldwyn TheatreGrant HeslovJacinda BarrettGabriel MachtDyan CannonMegan WardBrian OliverBeau WillimonAmy PascalRyan Gosling in GucciRyan Gosling green suitCirque Du Soleil IrisStephen ProughNicole WhitmanLA's Promise 2011 Gala Honoring Ryan SeacrestLA's Promise 2011 GalaLA's Promise