Josh Hartnett got in on the pre-Oscars parties when he dropped by the Vanity Fair and Fiat party benefiting the United Nations International Labour Organization in LA last night. The star-studded event, which was hosted by Ron Howard and composer Hans Zimmer, also included Lake Bell, Alyssa Milano, and Adrien Brody as guests. Josh had a busy evening, as he also visited the Hollywood Domino and Bovet 1822 event in West Hollywood. Alyssa — who wore Gucci to last night's event — will likely have a lot more Academy Awards-related events to attend this weekend, since her husband, David Bugliari, reps Bradley Cooper, who is nominated for best actor. Bradley has a lot of events on his plate this week, including Wednesday night's Vanity Fair dinner for Silver Linings Playbook, which he attended alongside costar Jennifer Lawrence and director David O. Russell. Don't forget to join us for our LIVE Oscars viewing party and red carpet coverage on Sunday, Feb. 24 at 5:30 p.m. EST/2:30 p.m. PST.