Which celebrity endorsement deal is credited with transforming the athlete endorsement landscape by including equity instead of just flat fees, creating a billion-dollar partnership?

Celebrity endorsements have been a powerful marketing tool for decades, helping brands connect with consumers through trusted faces and voices. But how well do you understand the economics and strategy behind these high-profile partnerships? This trivia question tests your knowledge about one of the most transformative celebrity endorsement deals in business history that changed how companies approach brand ambassadors.

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Michael Jordan's deal with Nike (Air Jordan)
LeBron James's lifetime contract with Nike
George Foreman's partnership with Salton Inc. (George Foreman Grill)
Serena Williams's endorsement with Gatorade