Miranda Lambert announced today at her website that she has to cancel her Australian tour dates due to a "illness with a respiratory infection".

Miranda was going down under as a supporting act for Alan Jackson.

“I was very much looking forward to Australia with Alan Jackson and performing for all the music lovers down under”, said Lambert.

Her opening act slot will be filled by Jasmine Rae, McAlister Kemp and John Williamson.

Miranda's next scheduled US tour date is March 16th at the Houston Livestock Show and Rodeo.`