Jaime King, Fergie and Chloe Moretz attend JustJared.com founder, Jared Eng's birthday party at Pink Taco; Ke$ha, Rose McGowan and Sophia Bush honor entertainment media that raises awareness on animal issues at the 26th Annual Genesis Awards; Kendra Wilkinson and Kim Kardashian celebrate Perez Hilton's birthday with a Mad Hatter-themed tea party at Siren Studios—the rain didn't stop Los Angeles from partying this weekend and we've got the details on the biggest events and the celebrities who attended them in this installment of Last Night's Parties!

[Jared Eng Jaime King via]