Do Won Chang (Forever 21)

Wealth: $3 billion

Won Chang is one of the American multimillionaires. This businessman comes from Korea and he became famous together with his wife Jin Sook Chang thanks to the founding of the clothing chain Forever 21. Until then, fashion was represented by older luxury brands such as Prada or Louis Vuitton. Chang never even graduated from any university and made a living working in cafes. After his wife managed to save $11,000, they decided to open the first store, later called Fashion 21. In the first year, the couple managed to generate $700,000 in sales and soon decided to expand their establishments to more locations and change its name to Forever 21. Now both own 800 branches of Forever 21 worldwide.