Which celebrity endorsement deal is credited with saving a major brand from bankruptcy by increasing sales by over 400% within one year?

Celebrity endorsements have been a powerful marketing strategy for decades, transforming brand perceptions and consumer behaviors. From Michael Jordan's Nike partnership to George Clooney's Nespresso campaigns, famous personalities can elevate products to iconic status. But which celebrity endorsement actually created the most significant measurable impact on a brand's fortune? Test your knowledge of the intersection between star power and consumer psychology!

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Robert Downey Jr.'s partnership with HTC smartphones (2013)
50 Cent's deal with Vitaminwater, which later netted him $100M when Coca-Cola acquired the brand
George Foreman's alignment with the lean, mean, grilling machine (1994)
Catherine Zeta-Jones becoming the face of T-Mobile (2002)