Music mogul Robert John 'Mutt' Lange has denied an affair was to blame for the breakdown of his 14-year marriage to country star Shania Twain. Lange filed for divorce from the singer after 14 years of marriage, and in a brief statement, the music producer admits the separation is "unfortunate."

But, according to People.com, Lange allegedly embarked on an affair with Marie Ann Thiébaud, a longtime secretary and manager of the couple's chateau in Switzerland. However, Lange has denied the claims, saying, "It's absolutely not the reason (for the separation). It's not true."

The couple wed in 2003. They have a six-year-old son, called Eja D'angelo.

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(This news article provided by World Entertainment News Network)