Which celebrity endorsement deal holds the Guinness World Record for the highest-valued ongoing athletic footwear contract, transforming both the athlete's brand and the retail company's market position?

The world of celebrity endorsements has seen some record-breaking deals that have transformed retail brands overnight. These partnerships between famous personalities and retail companies have set world records for contract values, brand growth, and market impact. Test your knowledge about the most lucrative and influential endorsement deals that made retail history!

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Michael Jordan's lifetime deal with Nike (est. $1.3 billion)
Cristiano Ronaldo's lifetime deal with Adidas (est. $1 billion)
LeBron James's lifetime deal with Under Armour (est. $1.5 billion)
Serena Williams's career-long partnership with Puma (est. $900 million)