The 'Uptown Girl' owes Uncle Sam $531,000 in back taxes, records show. Supermodel Christie Brinkley was told to pay up on Nov. 21, when the Internal Revenue Service filed a tax lien against her in Suffolk County, L.I. Brinkley, 57, is reportedly worth a whopping $80 million, mostly from real estate holdings in the Hamptons. The four-times divorced mom has been modeling and acting since she was discovered in Paris in 1973.
