Sonia Tudor Jones made her initial wealth and reputation as a fashion model in her native Australia. Back then, she worked under her original name of Sonia Klein. She's managed to maintain her incredible figure as she's grown older - a fact that she puts down to yoga.
She's so into yoga that she runs her own yoga studio, and she might even be giving pointers to her billionaire husband, Paul Tudor Jones. He's a highly successful hedge fund manager, and has billions of dollars in the bank.