London: Singer Ashlee Simpson has slammed reports that she was drunk during a radio interview saying it was "bad energy that caused her slurred speech".

Ashlee's representative added that she was "simply too tired" when she appeared on the radio show, contactmusic.com reports.

The younger sister of singer-actress Jessica Simpson clarified on her web page: "It was very upsetting to hear that people are saying that I was intoxicated when I came in for my morning interview. I take my work very seriously and would never disrespect anyone and come into an interview that way...

"When I walked into the radio station I was thrown into the interview. They didn't even introduce themselves to me before starting it and just put me on the air. I felt bad energy and like I was about to be attacked as soon as I sat down.

"Throughout my career, I have learned that you must speak up for yourself when people try to put you down. That is why I am writing this today. I'm tired of people making things up about others."