LONDON/PRINCETON, NEW JERSEY ¨C The leveraging of a giant social-media presence, a song about sharks and a collection of junkyards are just a few of the curious ways that helped make 2019 a fertile year for fortunes to blossom around the world.
Kylie Jenner became the youngest self-made billionaire this year after her company, Kylie Cosmetics, signed an exclusive partnership with Ulta Beauty Inc. She then sold a 51 percent stake for $600 million.
It has been two months since the Washington Nationals captured their first World Series championship, but people around the world are still singing along to the baseball team¡¯s adopted rallying cry, ¡°Baby Shark, doo-doo doo-doo doo-doo.¡± The South Korean family that helped popularize the earworm is now worth about $125 million.

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