The galas, a “more intimate” version Sept. 13 of this year and a larger one on May 2, 2022, will launch a two-part exhibition, a survey of American fashion to be on view for almost a year.

“In America: A Lexicon of Fashion,” opening Sept. 18, will celebrate the 75th anniversary of the museum’s Costume Institute and “explore a modern vocabulary of American fashion,” the museum said. Part two, “In America: An Anthology of Fashion,” will open in the museum’s popular American Wing period rooms on May 5, 2022, and will explore American fashion, with collaborations with film directors, by “presenting narratives that relate to the complex and layered histories of those spaces.” Both parts will close on Sept. 5, 2022.

Filmmaker Melina Matsoukas (Queen & Slim) has been commissioned to create an open-ended film to project in the galleries, with content changing during the course of the exhibition.

There was no immediate word on who the celebrity hosts, or chairs, would be for the galas, traditionally a heady mix of luminaries from fashion, music, film, TV, sports and other arenas. The first gala in September will be smaller, and held in accordance with government coronavirus guidelines. The second next May is intended to be larger, in line with previous galas, which typically hold about 550 guests.

The gala is a major fundraiser, providing the Costume Institute with its primary source of funding. In 2020, the gala was canceled but fans were invited to engage in a social media challenge to re-create favorite red-carpet looks.

“Fashion is both a harbinger of cultural shifts and a record of the forces, beliefs, and events that shape our lives,” said Max Hollein, director of the Met, in a statement. “This two-part exhibition will consider how fashion reflects evolving notions of identity in America and will explore a multitude of perspectives through presentations that speak to some of the complexities of history with powerful immediacy.”

As always, the exhibits will be the work of star curator Andrew Bolton. “Over the past year, because of the pandemic, the connections to our homes have become more emotional, as have those to our clothes,” he said in his own statement. “For American fashion, this has meant an increased emphasis on sentiment over practicality.”

He said that in accordance with this shift, Part One of the exhibition will establish “a modern vocabulary of American fashion based on the expressive qualities of clothing as well as deeper associations with issues of equity, diversity, and inclusion.”

As for Part Two, it will “further investigate the evolving language of American fashion through a series of collaborations with American film directors who will visualize the unfinished stories inherent in The Met’s period rooms.”

In addition to Matsoukas, other confirmed collaborators from the film world include cinematographer Bradford Young, whose projects have included Selma and When They See Us; production designers Nathan Crowley and Shane Valentino; and Franklin Leonard, film executive and founder of The Black List, a listing of top unproduced screenplays.