Warren G makes an appearance at the Adam-12 DJ'ed Ba-Rack The Vote Obama '12 fundraiser pool party in Hancock Park; Kevin Connolly and most of the Real Housewives show up for the pre-opening celebration at Kyle Richards' new Beverly Hills boutique; Paula Abdul, Arsenio Hall, Jane Seymour, Craig Ferguson and many others flock to the HollyRod Foundation's annual DesignCare fundraiser; Bella Thorne hosts a volunteer-driven charity event in Universal City featuring several teen show stars; Justin Bieber, Selena Gomez, Ian Somerhalder and every teen star you can think of attend the 2012 Teen Choice Awards. This weekend, L.A. was jam packed with celebrity-heavy events, and we've got all the details in this Monday edition of Last Night's Parties!

Paula Abdul, Arsenio Hall at the HollyRod Foundation's 14th Annual DesignCare event


Mel B Kristen Stewart Will.I.Am Selena Gomez Zac Efron Taylor Swift Lisa Rinna Zooey Deschanel Ellen DeGeneres Portia De Rossi Hayden Panettiere lea michele Taylor Lautner Zoe Saldana Robert Pattinson Kevin Connolly Flo Rida Hollyrod Foundation Paula Abdul Debby Ryan Teen Choice Awards Gwen Stefani Jordin Sparks Justin Kirk Warren G Regina King Arsenio Hall Tracee Ellis Ross Justin Bieber Pauly D Kendall Jenner Dax Shepard shaun white Nina Dobrev Ian Somerhalder Paul Wesley Natalie Cole Shaun Robinson Gordon Ramsey Jane Seymour Demi Lovato Real Housewives of Beverly Hills Kylie Jenner Tia Mowry Tamera Mowry Lucy Hale Miranda Cosgrove Josh Hutcherson JoJo Harry Hamlin Taylor Armstrong Kyle Richards Lisa VanderPump Zachary Levi Shannon Tweed Ashley Benson Adrienne Maloof Chord Overstreet Adam Bravin Chris Colfer Bella Thorne DJ Adam 12 LC Chris Hemsworth Brooke Burke Big Sean Staples Obama fundraiser Kevin McHale David Charvet Michael Trevino Kim Richards Faye Resnick Mauricio Umansky Paul Nassif Annie Ilonzeh Joel Courtney Yvette Nicole Brown Tyler Posey Kevin Hart Elise Neal Jennessa Rose Jenni Pulos Craig Ferguson Ashley Argota Shay Mitchell Holly Robinson Peete Rodney Peete Mason Cook UNiversal City Camille Grammar Gibson Amphitheater Stefanie Scott Adam Rodriguez Victoria Justice. Ally Maki Coco Jones Madeleine Carroll Katerina Graham