Former porn star Jenna Jameson insists exhaustion was to blame for a disastrous live Tv interview in America on Monday morning (21Oct13), during which she slurred her words and seemed a little confused.

The busty blonde raised concerns for her health after she was featured looking disorientated as she promoted her new fiction book, Sugar, on breakfast show Good Day Ny.

Jameson, who has battled substance abuse in the past, has since cleared up speculation she was under the influence during the Fox network interview, insisting she was just suffering from a lack of sleep.

She tells, "(I was) very tired. I was exhausted."

Jameson hit headlines last year (12) after she was hit with a Dui charge for crashing her car in Orange County, California. She was sentenced to three years probation and ordered to take a three-month alcohol education programme after reaching a plea deal to keep her out of jail.