Which celebrity acquired a significant ownership stake in Diageo's Cîroc vodka in 2007, transforming the struggling brand into one of the company's fastest-growing spirits through innovative retail marketing?

Famous people have increasingly moved from merely endorsing products to actually owning and creating their own retail empires. This strategic shift represents one of the most significant trends in celebrity business ventures of the past decade. Test your knowledge about these celebrity entrepreneurs and their retail ventures that have disrupted traditional market segmentation and created new retail categories.

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Sean 'Diddy' Combs
George Clooney
Jay-Z
Ryan Reynolds