Kristen Stewart teamed up with Simon Baker to announce the Hollywood Foreign Press Association's Cecil B. DeMille Award winner in Beverly Hills yesterday. Kristen wore a grey Bec & Bridge dress (Aussie designers for the win!) for the event, which revealed that Jodie Foster would be the recipient of the prestigious honour at the Golden Globes in January. It was an early morning for Kristen, who celebrated Halloween at the Hollywood Forever Cemetery with Robert Pattinson on Wednesday night. They both wore masks for the party, though Kristen later changed into a pink wig, and held hands all night. The duo partied with a costumed Katy Perry, but they weren't the only ones that dressed up for the holiday. Jennifer Garner and her family went as characters from Wizard of Oz to trick-or-treat in Malibu while Gwen Stefani took Zuma out for candy in London.