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.

Sophia Bush, Lea Michele, Kristen Bell [via]