During the 8 p.m. EST, Sunday, March 6 episode, Johnson will go undercover in one of the country's poorest neighborhoods to discover the unsung champions working to better the community.

Based on the hit British TV series, Secret Millionaire follows successful U.S. businesspeople who spend a week in the country's poorest areas, reveal their true identity and give deserving people in the community thousands of dollars of their own money.

Raised on welfare, Johnson became pregnant at 17, homeless at 21 and a millionaire at 23, according to her Web site. She is president and founder of Call to Freedom International, a personal achievement and corporate training company.

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