GQ’s 2015 Men of the Year party: Bradley Cooper, Amy Schumer, Wiz Khalifa kick it at Chateau Marmont

So. Many. Men.

GQ’s party celebrating its 20th anniversary Men of the Year issue was nothing if not masculine, filled with dudes of all flavors kicking it outdoors by the Chateau Marmont pool on Thursday night in Los Angeles.

With a hint of cigar smoke wafting around the hanging lights and heat lamps and the party’s logo projected on the adjacent hotel, the mixing and matching was awesome.

The midparty arrival of Amy Schumer, cover girl on the mag’s August comedy issue, caused a Schumer-jam as she came off the red carpet and beelined for Bradley Cooper. (Glad to see their engagement is still on.) She made the most of the traffic, however, turning a group of partygoers into the luckiest people there by photobombing their selfie — which also saw Tyrese Gibson mugging in the background.

Before that, Cooper had been deep in conversation with Scott Eastwood, who apparently has been “dying to go to Morocco.” And really, who hasn’t been?

Terry Crews worked the crowd energetically (you expected anything less?) after a relatively early arrival with wife Rebecca King-Crews, checking names and shaking hands.

“My ‘Draft Day’ homie!,” the former NFL player called out to “Veep” star Timothy Simons near the bar in the back, an area where many people stopped on their way off the red carpet. “That was a great movie!”

“It was a great movie,” Simons agreed as the two tall fellows embraced. “So many great people. Sam Elliot was in it! I didn’t even get to work with Sam Elliot.”

“Grand Budapest Hotel” actor Tony Revolori worried to buddy Jack Quaid — Marvel in “The Hunger Games” — that he was “totally underdressed for this thing” in jeans, Walter White T-shirt and a black leather jacket. Don’t sweat it, said Quaid, who was looking for his date and sporting a three-piece skinny suit.

And while the skinny suit was the overwhelming male fashion choice of the evening, James Marsden and Kyle Maclachlan supported the no-worries argument, mingling around the back bar in jeans and, respectively, a track jacket and a cardigan.

On the other side of the party, near the DJ and the other bar, a dapper Jon Hamm sipped what appeared to be a tall soda with lime as he sat for a joint GQ video interview with rail-thin Wiz Khalifa, whose drink of choice was Bombay Sapphire gin straight from a bottle conveniently nestled on ice in a bucket in front of him.

Tyga and Kylie Jenner were there — he stayed late, her not so much — as were Topher Grace, Jimmy Kimmel, Michael Keaton, Julian McMahon, Tony Hale, Taraji P. Henson, Ashley Benson, Christina Milian, Anna Camp, Anthony Anderson, Alessandra Ambrosio, Judd Apatow, David O. Russell, Sarah Hyland, Joel McHale and Lydia Hearst, Matt McGorry, Billy Eichner, and Bryshere Y. Gray. That’s only a sampling of the GQ “honorees and friends” who were at the soiree hosted by GQ editor in chief Jim Nelson. The place was so packed, the crowd didn’t part even for the A-listers.

Khalifa, who was smoking a hand-rolled something and rocking a light-colored leather jacket with impressively long fringe on both sleeves — hey, it was cold for L.A. — was among the top talent lingering the latest, hanging out well into the night with the likes of French Montana and “Empire” actress Serayah McNeill.

Meanwhile, Sarah Silverman hung out above it all with “The Office” writer Stephen Merchant, taking in the poolside action from the platform that was home not only to the DJ booth but to clusters of comfortable but sneaky black ottomans that lurked low in the dimness, waiting to trip up unsuspecting partygoers.

Follow Christie D’Zurilla on Twitter @theCDZ and Google+. Follow the Ministry of Gossip on Twitter @LATcelebs.