Which celebrity endorsement campaign is credited with saving a major brand from bankruptcy by increasing sales by over 500% in a single year?

Celebrity endorsements have been a cornerstone of product marketing for decades. From Michael Jordan's partnership with Nike to Kylie Jenner's influence on beauty products, famous faces can dramatically impact consumer behavior and product success. This poll tests your knowledge about the fascinating intersection of celebrity power and product marketing strategy. Do you know which celebrity endorsement created the most significant market shift?

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George Clooney for Nespresso
Robert Downey Jr. for HTC smartphones
50 Cent for Vitaminwater (before Coca-Cola acquisition)
Puma's endorsement deal with Rihanna for the Fenty line