Which famous person unexpectedly became the first celebrity brand ambassador for Square's point-of-sale system in 2014, helping to mainstream the technology among small business owners?

The collaboration between famous personalities and retail brands has become a cornerstone of modern marketing strategy. From athletes to actors, musicians to social media influencers - celebrities often leverage their personal brand to boost product visibility and sales. This trivia tests your knowledge about some of the most influential (and sometimes surprising) celebrity-brand partnerships that have shaped retail innovation and consumer product marketing in recent years.

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Magic Johnson
Mark Cuban
Martha Stewart
Richard Branson