Which celebrity's partnership with a fashion retailer resulted in the first billion-dollar celebrity clothing line?

Brand ambassadors have become a crucial element in retail marketing strategies. When celebrities partner with brands, they can dramatically influence consumer behavior and brand perception. This trivia question tests your knowledge about one of the most financially successful celebrity-brand partnerships in recent history. Do you know which famous person's collaboration with a major brand created a billion-dollar empire?

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Jessica Simpson with the Jessica Simpson Collection
Kanye West with Yeezy and Adidas
Rihanna with Fenty and LVMH
Beyoncé with Ivy Park and Adidas