Which athlete's signature shoe line is credited with revolutionizing celebrity product endorsements and has generated over $3 billion in annual revenue for its parent company?

Celebrity endorsements have become a cornerstone of modern marketing strategy, with brands paying astronomical sums to associate their products with famous personalities. These partnerships can transform product visibility and consumer perception overnight. This trivia question explores one of the most lucrative celebrity endorsement deals in history that revolutionized the athletic footwear industry and created a lasting legacy in marketing.

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Michael Jordan (Air Jordan)
LeBron James (Nike LeBron)
Roger Federer (On Running)
Cristiano Ronaldo (Nike CR7)