Which celebrity's product endorsement campaign was the first to include a 'performance-based' contract structure where earnings were tied directly to sales increases rather than a flat fee?

Behind every successful celebrity product endorsement is a brilliant marketing strategy. This trivia challenges your knowledge of how famous personalities have transformed product marketing landscapes through innovative campaigns. Do you know which celebrity endorsement strategies created the biggest market shifts? Test your understanding of the intersection between star power and product innovation!

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Michael Jordan with Nike's Air Jordan line in 1984
Oprah Winfrey with Weight Watchers in 2015
George Foreman with the Foreman Grill in 1994
Jessica Alba with The Honest Company in 2011