• Jessica Chastain looked unrecognizable with her new platinum-blonde hair at the Met Gala. 
  • Chastain paired her new hair with a black strapless gown and sheer opera gloves on Monday. 
  • She also wore sunglasses to fit the theme, "Karl Lagerfeld: A Line of Beauty." 

Kim Kardashian made headlines at last year's Met Gala when she walked the red carpet in Marilyn Monroe's iconic dress — and her matching platinum-blonde locks. 

But this year it was Jessica Chastain who wowed everyone with a major hair transformation. 

One of Hollywood's most famous redheads looked unrecognizable with her new icy-blonde hair on Monday night.

Jessica Chastain wore head-to-toe Gucci on the 2023 Met Gala red carpet. Foto: Kevin Mazur/MG23/Getty Images for The Met Museum/Vogue

 Chastain's new hair appeared to pay tribute to Monday night's theme "Karl Lagerfeld: A Line of Beauty," a celebration of the German designer's mark on the fashion world

The actor's new hairdo is a huge departure from her signature red locks, as seen at the 2023 Oscars below.

Jessica Chastain attends the 2023 Academy Awards. Foto: Kayla Oaddams/WireImage/Getty Images

The actor was one of many stars at this year's Met Gala to opt for an all-black ensemble in honor of Lagerfeld, who was known for wearing a lot of black. 

Karl Lagerfeld was Chanel's creative director. Foto: Stefanie Keenan/Getty Images

Chastain's strapless black gown featured a sweetheart neckline and a dramatic, ruffled skirt. She accessorized with sheer, black opera gloves and sported a pair of black sunglasses on the red carpet — another nod to Lagerfeld's personal style. Her entire ensemble was designed by Gucci, according to E! News.

Jessica Chastain poses in Gucci sunglasses at the 2023 Met Gala. Foto: Jamie McCarthy/Getty Images

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