The couple first began dating in December 2017 and got engaged in May 2019.
During a stop at Monday's "The Tonight Show Starring Jimmy Fallon," the Avengers star, 34, said she did not want her fiance's final fete before their big wedding day to be planned by "Saturday Night Live" castmember Michael Che.
Back in September, Che appeared on the show and said he should be the event's organizer, otherwise "it would be so boring."
"It would be definitely in the daytime and Scarlett will certainly be there," Che joked at the time.
But Johansson wasn't having it.
"Oh, no. I don't think that's a good idea," she explained to Fallon. "I feel like if he throws it, it's going to be, like, by the Port Authority. And it's gonna be very local. I don't think that's a good idea."
Fallon was on board though, which prompted Johansson to say, "You're not going," adding, "Michael's not throwing it. He's not. Is this a thing now?"
She then turned to the camera and quipped, "Michael, I know where you work, Michael."
But the actress knew it was all in good fun as she added, "No, I love Michael, he's a delightful guy."
And there will be time to figure out who will plan the party as the date for the couple's wedding has yet to be announced. The couple first began dating in December 2017 and got engaged in May 2019.
Johansson was previously married to Ryan Reynolds and Romain Dauriac, with whom she shares daughter Rose. This will be the first marriage for Jost.
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