Which celebrity endorsement deal is credited with revolutionizing sports marketing and generating over $3 billion in revenue by 2019, creating one of the most successful product lines in retail history?

Throughout retail history, celebrity endorsements have significantly influenced consumer behavior and brand recognition. Some partnerships have been so successful that they've transformed both the brand and the celebrity's career. This trivia question explores one of the most financially successful celebrity-brand partnerships of all time, which revolutionized athletic footwear marketing and created a lasting legacy in retail history.

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Michael Jordan's partnership with Nike (Air Jordan)
George Foreman's alliance with Spectrum Brands (George Foreman Grill)
Oprah Winfrey's collaboration with Weight Watchers
Kylie Jenner's creation of Kylie Cosmetics