Which celebrity was the first to negotiate an equity stake instead of a flat fee for their product development role, creating a billion-dollar business model that revolutionized celebrity partnerships?

Celebrity product endorsements have evolved dramatically over the years. While many stars simply lend their name to existing products, some have actively participated in product development and innovation. This poll tests your knowledge about a groundbreaking celebrity-driven product innovation that changed how famous people approach business partnerships. Can you identify which celebrity pioneered this particular product development strategy?

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George Clooney with Casamigos Tequila
50 Cent with Vitamin Water
Jessica Alba with The Honest Company
Kylie Jenner with Kylie Cosmetics