Emma Watson getting in on a quick pic with the girls.
George Takei getting ready to break out the Patrón. Leonard Nimoy wants a double.
Michelle Obama photobombs a bestie.
Brad Pitt talking about where he got his awesome outfit.
Robert Downey Jr. goofing with his best bros.
Nathan Fillion getting ready to chug a brewskie.
Al Gore seriously considering getting in on some Wii bowling.
Don't tag Posh in this pic of David Beckham flirting!
Alec Baldwin offering to go on a beer run.
Shia LaBeouf wore his best club shirt.
Tom Cruise was gifted some... artwork? Furniture? What is that?
Lindsay Lohan, being a wallflower.
At least one eyebrow was raised by John McCain's late arrival.
Keanu Reeves isn't buying someone's story.
Emma Watson wishing she'd turned around in time for this picture.
A tender moment with Bill Murray.
Colin Farrell is just trying to make a good impression.
He works hard, he plays hard: POTUS in the house!
Stephen Colbert texting more friends to come party.
Ryan Gosling wants to tell you what just happened in the next room.
Dwayne (the Rock) Johnson brought some microbrews.
Neil Patrick Harris looking unfazed by all this debauchery.
It's official. Tom Cruise is cut off for the night.
OK, who gave him more booze? (And a new shirt?)
Leonardo DiCaprio wants to know where he can get a pizza roll.
Jake Gyllenhaal looking sheepish about overdressing.
Tina Fey caught snooping through the host's unopened mail.
Zac Efron, Jonah Hill and Vanessa Hudgens planning their next stop of the night.
Joseph Gordon Levitt, just moments before the cops came.