Which celebrity endorsement deal is considered revolutionary for paying the star a percentage of sales rather than a flat fee, eventually creating a billion-dollar sub-brand?

Celebrity endorsements can dramatically transform a brand's trajectory and market position. Some endorsement deals have become legendary in marketing history, creating cultural phenomena and revolutionizing how companies approach influencer partnerships. This trivia challenges your knowledge about one of the most financially successful celebrity endorsement deals ever made, which fundamentally changed both the athletic footwear industry and celebrity marketing strategies forever.

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Michael Jordan's partnership with Nike (Air Jordan)
George Foreman's deal with Spectrum Brands (Foreman Grill)
Oprah Winfrey's agreement with Weight Watchers
50 Cent's partnership with Glacéau (Vitaminwater)