The Reason for Shania's Split Revealed

"The Insider" has the latest... Less than a week after they announced they were separating , sources are telling People the reason behind singer SHANIA TWAIN and her producer husband ROBERT "MUTT" LANGE 's sudden split. A source tells the mag that Lange was having an affair with MARIE ANN THIEBAUD an employee at the couple's Swiss chateau. "Mutt and Marie Ann left their spouses for each other and are still in a relationship," a source says. (link)