Which celebrity completely transformed a struggling retail brand by implementing innovative customer experience strategies and product innovation, resulting in a 700% stock price increase within 5 years?

Many celebrities have revitalized failing brands through innovative retail strategies and marketing approaches. These famous faces didn't just lend their names but implemented comprehensive retail innovation and consumer engagement tactics that transformed struggling companies into thriving businesses. Test your knowledge about which celebrity business mogul executed one of the most remarkable retail turnarounds in recent history!

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Rihanna with Fenty Beauty's expansion into Sephora stores
Ryan Reynolds with Aviation Gin's personalized marketing approach
Jessica Alba with The Honest Company's retail transparency initiative
Howard Schultz returning to Starbucks in 2008 with his 'Transformation Agenda'