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.

Bella Thorne helps celebrate Latinos in Hollywood at The London; a youth orchestra takes over Barney's New York in Beverly Hills for a fundraising event hosted by Simon Doonan; Wendi McLendon-Covey and Selita Ebanks step out for the Give & Get Fete fundraiser at the SLS; George Clooney and Stacy Keibler squash breakup rumors with PDA while supporting Ben Affleck along with Jennifer Garner, Bryan Cranston and more at the premiere of Argo—get your final dose of event rundowns before the weekend in this edition of Last Night's Parties.

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The Beatles are famous for their effect on teenage girls and fans who would scream and cry a the very sight of the band.  But we've never heard of the sort of pileup Ringo Starr and Joe Walsh triggered at the 'Imagine There's No Hunger' event the other night.  As soon as the two hit the red carpet, a frenzy broke out and a domino effect of photographers falling to the ground on top of each other. More»