Singer Lisa Marie Presley is suing the Daily Mail over an article which alleged that she was "piling on the pounds", which forced her to announce her pregnancy.
The 40-year-old singer, who is the daughter of music legend Elvis Presley, claimed that she was deeply upset by the article.
The Mail, published by Associated Newspapers, reported last week that Presley was gaining weight.
Presley's lawyer Simon Smith said: "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."
In a blog posting on her MySpace webpage, Presley wrote: "Once they got a glimpse of my expanding physique a few days ago, they have been like a pack of coyotes circling their prey whilst eerily howling with delight."
She also said that she was forced to "show my cards and announce under the gun and under vicious personal attack that I am in fact pregnant".
Presley already has an 18-year-old daughter and a 15-year-old son.
