Disney alum Selena Gomez has been very open with her fans (Selenators, as they're known) about her health troubles including her battle with depression and lupus.
The 25-year-old entertainer first spoke out about the auto-immune disease in 2015 after she was forced to cancel tour dates so she could undergo chemotherapy to ease some of the symptoms.
Selena also shared with fans that she completed a rehab program after experiencing lupus-related panic attacks and depression.
The pop star, who is the most followed person on Instagram, frequently posts updates about her life and health. So when she suddenly went quiet for a chunk of this past summer, people grew concerned.
The singer eventually returned to the photo sharing platform, and in the wee hours of September 14, she finally revealed the shocking reason why she went under the radar.