18) Janet Jackson – Net Worth: $175 Million

This American singer and actress is the sister of Michael Jackson, she has sold over 140 million albums worldwide and considered as one of the best-selling artists in the history of contemporary music. Her acting credit include movies like “Poetic Justice”, “Nutty Professor II: The Klumps”, “Why Did I Get Married”, “Why Did I Get Married Too” and “For Colored Girls.”