Worlds collided at The Hill and “Entertainment Tonight’s” White House Correspondents’ Association Dinner cocktail reception, where lawmakers rubbed elbows with some of Hollywood’s hottest stars.

Among the glam attendees at the Friday night soiree held at the Canadian Embassy in downtown Washington: actress and model Brooklyn Decker, “Scandal” actress Darby Stanchfield, and “Entertainment Tonight” host Nancy O’Dell.

“It’s just a very different event for us folk coming from the Hollywood world,” said Decker, who joked that she felt a little out of D.C.-style in a sleeveless pantsuit. 

"Truthfully, I look at Robin Wright in House of Cards, and I think, 'Wow, that's D.C. fashion,'" she told The Hill. 

Held on an outdoor patio with a view of the gleaming white Capitol building and the Washington monument, the Hollywood regulars mixed and mingled with journalists, lobbyists and D.C. bigwigs as well as lawmakers, including Sen. Joe ManchinJoseph (Joe) ManchinOvernight Energy: EPA aims to work more closely with industry Overnight Finance: Lawmakers grill Equifax chief over hack | Wells Fargo CEO defends bank's progress | Trump jokes Puerto Rico threw budget 'out of whack' | Mortgage tax fight tests industry clout Lawmakers try again on miners’ pension bill MORE (D-W.V.), Sen. Roy BluntRoy Dean BluntThe Hill's Whip List: Republicans try again on ObamaCare repeal Another health funding cliff puts care for millions at risk Top Senate Dem: We're going forward with understanding we can work with White House on DACA MORE (R-Mo.) and Rep. Carolyn Maloney (D-N.Y.). 

Guests sipped cocktails and danced as Connor Cruise — Tom Cruise’s son — deejayed the event.

Dressed in uniform, the embassy’s Royal Canadian Mounted Police, or “mounties,” stood watch as guests posed with them on the red carpet.

O’Dell said Hollywood and D.C. did have a few things in common. 

“The world of Hollywood is definitely political, as is D.C…so I think they kind of relate and understand each other. There’s glamour associated on both sides,” she said. 

Also eyed at the exclusive party: White House press secretary Jay Carney and his wife, journalist Claire Shipman; Fox News Channel’s Ed Henry and his wife, Shirley Henry; Food Network’s Sunny Anderson; CNN’s Michaela Pereira and Nischelle Turner; Laura Blumenfeld, special adviser to Secretary of State John KerryJohn Forbes KerryFor the sake of national security, Trump must honor the Iran deal Bernie Sanders’s 1960s worldview makes bad foreign policy DiCaprio: History will ‘vilify’ Trump for not fighting climate change MORE on Israel and Palestine; and Fox News correspondent and former WHCA president Ed Henry.

“Every celebrity that’s here tonight, I have to warn them that the beer is stronger in Canada,” joked Canadian Ambassador Gary Doer. 

Fox News' host Greta Van Susteren brought along her guest, former “Smash” star and one-time “American Idol” contestant Katharine McPhee. After ITK inquired whether McPhee was teaching the cable news personality to use her vocal chops, the “On the Record” anchor jested that McPhee had indeed attempted to give her singing lessons.

Other attendees included The Hill Chairman James Finkelstein, Publisher Adam Prather and Editor-in-Chief Hugo Gurdon, along with the “World’s Most Interesting Man,” Jonathan Goldsmith (aka the Dos Equis spokesman). 

When we asked Goldsmith his pick for the most interesting man in the nation’s capital, he replied without missing a beat, “[President] Obama.”

This story was updated at 3:29 p.m.