The 44 year-old star made the announcement on her official website. At the moment, she plans to perform for an audience on June 12 in Indianapolis.
The singer wrote on her site of her appreciation of her fans. She wrote, "I cannot begin to tell you how much your cards, messages, letters, flowers, and prayers have meant to me these last few weeks. Needless to say, this has been a really challenging time for me and as I have always said, I have the greatest, most generous fans in the world."
As for her health, she said, "I am doing really well. Strangely, I feel clear and optimistic…perhaps more than ever. I am on day 4 of my 33 radiation treatments and am feeling really good. As you know, my breast cancer was detected very early and I am completely blessed that it was removed and all I have to undergo in the way of treatment is radiation, strictly for preventative measures."