The duo's lawsuit says they learned in April 2007 that an unidentified singer-songwriter had used Maneater in a 2006 recording.

The papers, filed in Manhattan's state Supreme Court, claim Warner/Chappell Music breached its publishing contract with Hall and Oates by refusing 'in bad faith' to sue for copyright infringement.

The singers seek unspecified money damages and want to terminate their agreement with Warner/Chappell.

A Warner/Chappell spokesperson did not immediately return a call for comment on Thursday.

Hall and Oates' hits also include Rich Girl, Private Eyes and I Can't Go for That (No Can Do). -- AP