Which celebrity's endorsement deal with Nike created the most successful athlete-branded product line in history, generating over $5 billion annually at its peak?

Celebrity endorsements have transformed retail strategies and consumer behavior for decades. Some partnerships have been so successful they've revitalized entire brands or product lines, while creating cultural phenomena in the process. Test your knowledge about these game-changing celebrity retail partnerships that made cash registers ring worldwide and reshaped marketing landscapes forever.

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Michael Jordan
LeBron James
Serena Williams
Cristiano Ronaldo