Which celebrity's personal care product line became the fastest to reach billion-dollar valuation status, achieving this milestone in less than four years after launch?

Celebrity endorsements have evolved dramatically over the decades. While many stars simply lend their face to existing brands, some have built remarkable business empires through product innovation and strategic partnerships. This trivia question tests your knowledge of which celebrity entrepreneur achieved a particularly notable financial milestone with their product line.

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Rihanna's Fenty Beauty
Jessica Alba's The Honest Company
Gwyneth Paltrow's Goop
Kylie Jenner's Kylie Cosmetics