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.

Ben Affleck, Lea Michele, Kristen Bell, Olivia Munn and more hit the blue carpet at the Do Something Awards; AnnaLynne McCord and Serinda Swan are among the many guests at Friends to Mankind's fundraising event; Brittany Snow, Jessica Stroup and others help raise funds for the Leukemia and Lymphoma Society—it was a very big weekend for celebrities giving back and we have the details on the top events around town in this installment of Last Night's Parties.

[Dax Shepard, Kristen Bell, Will Ferrell via]MORE>>

Ben Affleck, Lea Michele, Kristen Bell, Olivia Munn and more hit the blue carpet at the Do Something Awards; AnnaLynne McCord and Serinda Swan are among the many guests at Friends to Mankind's fundraising event; Dita Von Teese and Rose McGowan join Linda Ramone at the Hollywood Forever Cemetery for a Johnny Ramone Tribute; Brittany Snow, Jessica Stroup and others help raise funds for the Leukemia and Lymphoma Society—it was a very big weekend for celebrities giving back and we have the details on the top events around town in this installment of Last Night's Parties. More»

Last night in NYC, Fiona Apple performed live at the Top of the Standard for Phillip Lim and Nate Lowman, Meryl Streep and Ethan Hawke honored Al Pacino at the Public Theater gala, Abraham Lincoln: Vampire Hunter premiered in NYC, Chris Webby rocked out at Double Seven for Avenue A Soundcheck, and so much more! Last night's parties were all about the performances. More»