'Avengers' star Scarlett Johansson, 'SNL' star Colin Jost engaged after 2 years of dating

Congratulations are in order for a private but well-known Hollywood couple: Scarlett Johansson and Colin Jost are engaged!

Johansson's publicist Marcel Pariseau confirmed the happy news to the Associated Press on Sunday.

The 4-time Golden Globe nominee is best known for her role of Natasha Romanov/Black Widow in the Marvel Cinematic Universe films. Black Widow is the only female hero among the six core Avengers. Jost recently appeared on the red carpet with his then-girlfriend for the release of "Avengers: Endgame."

PHOTOS: Scarlett Johansson, Colin Jost and more on the red carpet at the 'Avengers: Endgame' premiere

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Colin Jost, left, and Scarlett Johansson arrive at the premiere of "Avengers: Endgame" at the Los Angeles Convention Center on Monday, April 22, 2019.

Jordan Strauss/Invision/AP

Jost is best known as the co-anchor on the "Weekend Update" segment on "Saturday Night Live." His fiancee is a member of the elite "Five-Timers Club," people who have hosted the sketch-comedy series at least five times.

The couple has been together for two years. Pariseau said they haven't yet set a wedding date.

WATCH: Six core Avengers talk 'Endgame' in April before film's release

Watch the cast of ''Avengers: Endgame'' discuss the new Marvel epic and get a first look a scene from the film courtesy of ''Good Morning America.''

The Associated Press contributed to this report.