Which celebrity's unexpected brand partnership resulted in them acquiring significant equity in the company, eventually leading to a billion-dollar valuation of their stake?

The world of celebrity endorsements has seen some surprising and lucrative partnerships over the years. While some celebrity-brand matches seem natural, others have been unexpected yet highly successful. This trivia challenges you to identify which famous person made an unconventional brand partnership that transformed both their personal brand and the company's market position in a surprising way.

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George Clooney with Nespresso
George Foreman with the Lean Mean Grilling Machine
50 Cent with Vitamin Water
Michael Jordan with Hanes underwear