UPDATE: Back in the U.S., Conan just tweeted a photo of the Alec-Guiness-in-Our-Man-In-Havana look he adopted during his weekend jaunt to Cuba:

1/2: I just spent the last four days shooting my show all around the city of Havana. I made countless friends and had one of the best — Conan O'Brien (@ConanOBrien) February 17, 2015

2/2: experiences of my life. Many laughs, but that could also be the rum. Watch #ConanCUBA March 4th. http://t.co/Oa7YW5Pmsy — Conan O'Brien (@ConanOBrien) February 17, 2015

PREVIOUS EXCLUSIVE, Sunday 2:58 PM: Jimmy Fallon may have taken NBC’s Tonight Show to Phoenix and Los Angeles – but Conan’s in Cuba.

Conan O’Brien and a small crew flew to Havana Thursday and have spent the weekend filming for his TBS late-night show’s March 4 episode, becoming the first American late-night show to film in Cuba since the U.S. embargo began in 1962.

Jack Paar famously interviewed Fidel Castro for the Tonight Show in 1959, for which Paar got criticized in some circles. (Castro was a big “get” that year for obvious reasons and also was interviewed by CBS’s Sunday Beltway show — and Ed Sullivan.)

The episode is intended to give O’Brien’s audience a rare glimpse into Cuban daily life, said show representatives in confirming the report to Deadline.

O’Brien’s show is known for its road trips, having previously filmed in Ireland, Finland, and Toronto as well as New York, Chicago, Dallas and Atlanta. His remotes are a signature thing, including last week when O’Brien and Steven Yuen visited a Korean spa, and that Lyft ride Conan took through Hollywood with Ice Cube and Kevin Hart that went viral late last year.

In December, President Obama made news when he announced he would normalize relations with Cuba. Scott Pelley also made news that day when he anchored the CBS Evening News from Cuba, detailing for viewers the new rules loosening trade and travel restrictions that are part of the normalization push after a half-century of isolation and sanctions against the communist country. Pelley also talked about conservatives who complained about Obama’s use of presidential executive authority to achieve his policy goal.

NBC’s Brian Williams and ABC’s David Muir followed Pelley to Cuba the next month. And now, Conan’s making late-night history.

Conan’s been talking about traveling to Cuba for a couple of months. He waited until now to go film the episode because his show does not do a live episode on President’s Day, giving him the needed travel time for the trip.