Don Imus is being sued in Manhattan's state Supreme Court by Flatsigned Press Inc. for $4 million. The Nashville, Tenn-based book publisher is claiming that on Imus' previous radio show he badmouthed a book by Gerald Ford on the 1963 assassination of President John F. Kennedy. From The Associated Press:

''On his 'Imus in the Morning' show, the talker told WFAN listeners the publishers 'have been waiting for (Ford) to croak so they can unload these (books),' the lawsuit claims.

''Besides calling the ad spots 'cheesy,' Imus said of Ford's death, 'Now that he's flatLINED, you go to flatSIGNED.com,' the lawsuit filed in Manhattan's state Supreme Court says.

''... Flatsigned said it paid for two 30-second ad scripts a day for three days -- Jan. 29, 30 and 31, 2007.

''Imus, 67, read the first script as written, court papers say, but in later readings of the script, he made 'unequivocally unacceptable' remarks about the publisher, even after officials at CBS, WFAN's parent, asked him to stop.''

Also in Imus news, according to Page Six WKTU jock Sean ''Hollywood'' Hamilton had some disparaging words for the I-Man based on his age.

(image via Donna Svennevik/ABC)