NEW YORK - (CBSNewYork/AP) -- Selena Gomez has revealed that she's battling the debilitating immune system disorder lupus.
"I was diagnosed with lupus, and I've been through chemotherapy,'' the 23-year-old singer told Billboard magazine in an interview published Thursday.
Gomez acted in "Wizards of Waverly Place'' before becoming a pop star. She said she was treated in late 2013 and early 2014 after she canceled the Asian and Australian legs of her Stars Dance tour.
Lupus causes fibrous tissue and inflammation of internal organs, skin rashes and joint pain. It affects women nine times more than men. Organs affected by lupus include the kidneys, heart and lungs.
Gomez's hit singles include "Come & Get It'' and "Hit the Lights.'' She has also appeared in the films "Rudderless'' and "Spring Breakers.''
Gomez announced the lineup for her 2016 'Revival' tour earlier this week. She is scheduled to perform at the Barclays Center and the Prudential Center in early June.
(TM and © Copyright 2015 CBS Radio Inc. and its relevant subsidiaries. CBS RADIO and EYE Logo TM and Copyright 2015 CBS Broadcasting Inc. Used under license. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.)
for more features.