Lucy Guo has amassed more wealth than Rihanna, Madonna and Beyonce, according to a new Forbes ranking, but you're far less likely to have heard of her.

Lucy Guo, a Carnegie Mellon dropout, has become the world's youngest self-made woman billionaire, surpassing Taylor Swift. Guo's wealth stems from her

Lucy Guo has officially dethroned Swift as the world's youngest self-made female billionaire—take a look at her impressive property portfolio.