Ooh la la, Amy! The Parks and Rec star went for a sexy, cleavage-baring LBD.
Matthew McConaughey and Camila Alves
Matthew McConaughey, easily one of the most attractive men on planet earth, was dressed to the nines in his sleek iridescent grey suit. His wife, Camila Alves, gave us a tailored 80s vibe in a pale pink cocktail dress.
Journalist Erin Andrews opted for a metallic gold cocktail dress with streamlined shoes.
We love it when a gal chooses to play up a pair of pants. Chelsea Handler made the evening edgy in a midnight black button-down.
You might recognize this dude from The Office, but Clark Duke's hunter greek suit and white sneaks are way more stylish than his character's dressing of choice.
Masters of Sex star Nicholas D'agosto mastered the suit "sans of a tie" look.
Retta killed it in a scarlet red tunic dress, black boots, and a red pout to match!
Weird Al Yankovic
Weird Al Yankovic went for a simple suit and added detail with a graphic tie.
Not only is Dylan Penn's lace dress extremely flattering, it's also the ideal outfit for a holiday party. Thanks for the inspiration!
Matthew Morrison skipped the matchy-matchy suit situation and wore grey, black, and brown—all in one outfit!
You gotta love a bow tie! Colton Haynes looks incredibly handsome in his.
Did Luke Grimes win an award for his perfectly tailored suit? If not, we're giving him that recognition.
Forget shaving! Tyler Hoechlin's scruff makes his stylish ensemble even better.
Having an Angelina moment? Bar Paly gave the world a glimpse of her long, lean, and super toned legs with a thigh-high slit.
The bodice of Willa Holland's dress is breathtaking!
Funny man Will Ferrell showed up at the party with his wife.
Pharrell and Helen
A doubled-breasted suit jacket in teal. Yep, that's Pharrell for you!
Remember her almost see-all outfit from the Thor premiere? She kept the glam but covered up in a shimmery dress with royal details.
No one rocks a white tailored top like Jesse Metcalfe. No one.
Jesse Tyler Ferguson
Jesse Tyler Ferguson, clad in his signature bow tie, attended the star-studded party.
James Van Der Beek
We miss Dawson's Creek, but this fitted suit is way better than anything he ever wore in that old school show.
You nailed it, Nate! Oh, we mean Chase.
This is what Tinkerbell would wear if she knew about high fashion. Whitney Cummings accessorized her look with major black pumps and a modern middle-part.
Leather is in, and Trey Songz knows it.
Dermot Mulroney is always debonair.
Who doesn't love a buffalo plaid suit jacket? Darrin Criss knows how work the casual print at an evening affair.
Are you obsessed with Nick Kroll's footwear choice just like we are?
Our hearts are exploding! Benjamin McKenzie has never looked better.
BJ Novak got all dolled up for the GQ party, too.
Andy Samberg looks incredibly scholarly. Share some of your celeb trivia with us!
Feeling blue? Chord Overstreet stunned in the cool tone!
Meagan Good wore a LBD with a defined waistband trimmed in gold. She finished off her look with H.Stern Oscar Niemeyer Earrings worth $1,700!