Drew Barrymore and her boyfriend Will Kopelman dressed up for a fancy evening out in LA last night. They attended a fundraiser for the Obama Victory Fund, which benefits the president's re-election campaign and the Democratic National Committee, at the home of interior designer Michael S. Smith and HBO exec James Costos. First Lady Michelle Obama was the guest of honor, and she was able to catch up with Michael after he helped to decorate the White House in 2008. The soirée raised over $1 million for the cause, thanks to other A-list guests like Ellen DeGeneres, Vanessa Williams, and Ryan Phillippe. Will and Drew have been hitting the town together regularly, including a special Chanel-sponsored NRDC dinner two weeks ago. Drew has been dedicated to supporting her favorite causes lately, but will soon switch gears back to directing. She's gearing up to shoot How to Be Single, but first must round out the romantic comedy's cast.