Last Night's Parties LA

Over the weekend in L.A., Just Jared hosted a celeb-filled Summer Fiesta, attended by the likes of Mad Men star, Kiernan Shipka, Milla Jovovich, Camilla Belle, and Jesse Metcalfe, while Jordin Sparks and Jason Derulo came out to support singer Lianne La Havas at Warner Bros. Records "Summer Sessions," and much more! Click through for the scoop.

Lydia Hearst Milla Jovovich seth meyers Amber Rose Rumer Willis Nick Jonas emile hirsch Kristen Schaal Jordin Sparks camilla belle Maria Shriver Ashley Greene Keke Palmer Jason Derulo Just Jared Nolan Gerard Funk Verne Troyer Gillian Jacobs Josh Henderson Mark Salling Nolan Gould Louise Roe Tahj Mowry Zelda Williams Jayson Blair Kiernan Shipka Sasha Pieterse Bret Lockett Chord Overstreet Reeve Carney Bella Thorne Trey Parker Matt Stone Drake Bell Grey Damon Kate Linder Angela Kinsey Casey Wilson Katherine Schwarzenegger James Lafferty Carolyn Hennesy Carter Jenkins jeannie mai Gina Rodriguez Christopher Schwarzenegger Richard Grieco Daren Kagasoff Alan Ritchson Chloe Bridges Julian Morris Ashlee Keating Chris Galya Olivia Culpo Joey King Lianne La Havas Erik Valdez Halston Sage Maisie Williams Alli Simpson Maika Monroe Maitland Ward Allison Dunbar Alexia Dox Lindsey Gort Jesse Metcalfe and Cara Santana Jamie Brewer Lane Garrison Christina Schwarzenegger Bianca Vierra Cassandra Kunze 4th Annual Team Maria Benefit In Support Of Best Buddies Warner Bros. Records "Summer Sessions" Just Jared Summer Fiesta Ashley Madekwe and Iddo Goldberg Chloe Bennet and Austin Nichols Shenae Grimes and Josh Beech Aly & AJ Michalka Laura Vandervoort and Oliver Trevena Lance Bass and Michael Turchin Zane Carney Madison Beer Jason Collins and boyfriend Brunson Green Hulu's TCA Presentation And Cocktail Party Dannah Feinglass Phirman Andrea Savage Tymberlee Hill Danielle Schneider Mike Hopkins Mauricio Mota Katie Elmore Mota ZTPR Agency Summer Soiree Zack Teperman Alexa Ferr Rezzi Josh Levi Libby Gilbert Danny Minnick Paul Weber Jeff Marchelletta