Jessica Chastain has gone platinum blonde.
The Academy Award-winning actress showed off her new 'do on Instagram Monday, ahead of the 2023 Met Gala, the theme for which was "Karl Lagerfeld: A Line of Beauty," in honor of the longtime Chanel creative director.
"Any guesses who’s my inspo for tonight?" she wrote in the caption of a video post, which also showed off her stunning all-black ensemble.
Chastain, who wore a black strapless gown, was almost unrecognizable on the carpet as she walked the Met Gala steps later.
"It's not forever, it's for Karl," she told reporters.
Chastain accessorized her look with oversized black sunglasses -- similar to the ones Lagerfeld often wore -- a diamond necklace, glittering cocktail rings and sheer black opera gloves.
This year's Met Gala theme is centered around Lagerfeld's decades-long body of work. The Metropolitan Museum of Art's Costume Institute will also examine the designer's 65-year career, specifically his stylistic language and timeless aesthetic themes, in an exhibit that runs from May 5 to July 16.