Which celebrity endorsement created the largest percentage increase in brand value within one year of their partnership announcement?

Celebrity endorsements have been a cornerstone of product marketing for decades, with brands paying millions to associate their products with famous personalities. But how much do you know about the psychology and business strategy behind these star-studded partnerships? This trivia question explores a fascinating aspect of how celebrity influence translates to consumer behavior and brand perception in the marketplace.

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Michael Jordan's partnership with Nike (Air Jordan), resulting in a 420% increase in the basketball shoe division's revenue in the first year
George Clooney's partnership with Nespresso, resulting in a 270% increase in North American market share
Beyoncé's partnership with Pepsi, resulting in a 325% increase in millennial consumer engagement
Dwayne 'The Rock' Johnson's partnership with Under Armour, resulting in a 380% increase in fitness apparel sales