Lawyers for four former housekeepers of Smokey Robinson filed a lawsuit against the singer and his wife on Tuesday.

A lawyer for Smokey Robinson said late Wednesday that the sexual assault allegations against the Motown singer were “vile” and “false” and that a lawsuit filed by the four women making the accusations was an attempt to extract millions of dollars from him.

Smokey Robinson and his wife were named in a lawsuit alleging sexual assault, false imprisonment, and labor violations dating back to 2006.