Which celebrity's departure as a brand ambassador resulted in the largest single-day market value loss for a company?

Throughout pop culture history, celebrity brand ambassadors have sometimes parted ways with companies in dramatic fashion. These high-profile splits can significantly impact both the brand's image and product sales. This trivia tests your knowledge about one of the most financially consequential brand ambassador breakups in recent pop culture history. Do you know which celebrity-brand partnership ended with billions in market value lost?

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Cristiano Ronaldo removing Coca-Cola bottles during a Euro 2020 press conference
Kanye West's terminated partnership with Adidas following antisemitic comments
Tiger Woods losing endorsements after his 2009 personal scandal
Kendall Jenner's controversial Pepsi commercial being pulled after backlash