3. Christie Brinkley
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SI cover: 1979-1981
Net worth: $80 million
Bio: As a model, there aren’t many more successful than Christie Brinkley. She’s appeared on over 500 magazine covers in her 40-year career and is worth approximately $80 million dollars at 58-years old. Moreover, Brinkley is an accomplished artist, a clothes designer, an author, an entrepreneur and yes, she also appears in a running ad for Total Home Gym with none other than Chuck Norris.