Which celebrity holds the record for the longest-running continuous product endorsement deal in history?

Product endorsements have transformed from simple celebrity appearances to sophisticated brand partnerships. In the world of famous people and product marketing, these relationships have evolved to become mutually beneficial enterprises that shape both the celebrity's personal brand and the product's market position. Test your knowledge about this fascinating intersection of fame and commerce!

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Michael Jordan with Nike (since 1984)
William Shatner with Priceline (since 1997)
Betty White with Snickers (since 2010)
Betty Crocker with General Mills (since 1921)