Christie Brinkley owes $531,000 in back taxes to the Internal Revenue Service, according to the New York Daily News.  The IRS filed a lien on November 21st against one of the properties Billy Joel‘s ex-wife owns in Long Island, New York, according to documents obtained by the newspaper.

Brinkley, who is 57, is reportedly worth $80 million, mainly from real estate she owns in the Hamptons.  Brinkley’s rep, Claire Mercuri, told the New York Daily News, “Christie Brinkley was surprised to hear today that a tax lien had been filed, and has instructed her team to resolve the matter immediately.”  Brinkley made her Broadway debut this year as Roxie Hart in the musical Chicago.