Last night in NYC, Maria Baibakova hosted Artspace's 2nd Anniversary Dinner at the James Burden Mansion, Jeff Koons debuted his new exhibition to Larry Gagosian, Petra Nemcova, Prabal Gurung, and others at the Gagosian Gallery, Alexandra Lebenthal invited guests over for the Style of Sport launch party, Freida Pinto and Barneys NY celebrated Maiyet Varanasi's silk capsule collection, and so much more!

Lou Taylor Pucci, Seth Green and his wife step out with the cast of The Story Of Luke L.A. premiere; Russell Brand teams up with David Lynch to discuss meditation in education at the Hammer Museum; Dawn Olivieri and other celebrities go barefoot in support of TOMS One Day Without Shoes event at their Venice flagship with DJ sets by YACHT; BET's 2013 Upfront event puts Gladys Knight, Chaka Kahn, Kevin Hart, Bill Bellamy, and Lauren London on the same stage—get the scoop on everything that went down Tuesday with this edition of Last Night's Parties.

Sundance 2013 kicked off this weekend, and film buffs flocked to Park City again this year. From Dave Groh's sold-out concert at Park City Live with Stevie Nicks, to Jessica Biel and Ringo Starr hanging out at The Westway, to Avicii and Matisyahu's blow out performances, here is a round up of some of the top bashes from Sundance's first weekend.