Japan's first lady has written a book publicly questioning her husband's ability to lead the country titled What on earth will change in Japan now you are Prime Minister?.
Naoto Kan became leader of the world's second largest economy last month.
In the book his wife, Nobuko, writes a long list of his failings.
She criticises his delivery of his first policy speech in parliament, as well as his fashion sense and inability to cook.
The prime minister has previously called his wife his opposition in the home.
Asked by reporters about her book, Kan said he was too scared to read it.
The wife of the previous Japanese PM, Yukio Hatoyama, also made headlines.
Miyuki Hatoyama told a startled Japan that her soul had taken a ride on a UFO with aliens and travelled to Venusand that she had met Tom Cruise in a previous life - when he was Japanese.
