ET has the latest…

ET confirms that less than a week after announcing she and husband MICHAEL LOCKWOOD are expecting their first child together, LISA MARIE PRESLEY is suing the British paper The Daily Mail for reporting that she was "piling on the pounds."

The singer says the story forced her to announce her pregnancy. "My client is deeply upset and offended by this article, especially as it was widely published just as she and her family were meant to be celebrating her happy news," her lawyer said.

Presley made her feelings known last week when she lashed out at the tabloids on her MySpace blog saying, "After being the target all week of slanderous and degrading stories, horribly manipulated pictures and articles in the media, I have had to show my cards and announce under the gun and under vicious personal attack that I am in fact pregnant."