4. Oprah Winfrey
You’d think that multi-billionaire Oprah Winfrey wouldn’t let critics get to her. After all, she has the money and the power to shut anyone up, but instead, she decided to heed the public’s advice, buckle down, and work on transforming herself into the super-slim queen she is today. Ms. Winfrey, if you’re reading this, we absolutely adore your tenacity!
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