Credit: Larry Busacca/WireImage; Michael Loccisano/Getty; Paul Morigi/WireImage

Hollywood invades Washington!

The nation's capital was packed to the gills with A-list stars on Saturday night for the annual White House Correspondents' Dinner.

Held at the Washington Hilton, the bash had major stars mingling with politicians -- including President Barack Obama himself and hard-hitting TV and print journalists.

Among the celebs cracking up at Obama's jibes at Donald Trump and Matt Damon? Scarlett Johansson (with beau Sean Penn), Mila Kunis, Anna Paquin and hubby Stephen Moyer, Courteney Cox's estranged hubby David Arquette (with sister Patricia), Chace Crawford, Chelsea Handler and many more.