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

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 5% stake in Scale AI, a data annotation firm valued at $1.

Guo, the daughter of Chinese immigrants, grew up in the San Francisco Bay Area and began learning to code while still in middle school.