10 celebs that will become billionaires by 30

4. Willow and Jaden Smith

Willow and Jaden Smith could quite possibly follow in the footsteps of Kendall and Kylie, having already established their own careers in Hollywood. Willow, who enjoys acting and singing, is also said to be interested in modeling, while brother Jaden is hoping to expand his knowledge in the film industry, having already been lined up to star in several upcoming films. One can already imagine that their brands will expand to clothing lines, book deals, TV shows, albums, reality programs, and so much more.