Demi Lovato has never shied away from sharing her personal struggles with drugs and alcohol.
As she grew up in the Hollywood spotlight, the actress and singer found herself checking into rehab and taking breaks from the spotlight.
But whether it was through her music, social media posts or letters to fans, Demi would keep things open and honest about her sobriety, mental health and more topics so many would stay away from.
As famous friends and fans continue to send thoughts, prayers and well wishes both on and off social media, we're taking a look back at just some of the many times Demi opened up to fans about her struggles. Take a look at some of her wise words in our gallery below.
While fans wonder what could have led to such an unfortunate situation, those close to her are surprised things took such a negative turn so quickly.
"She has had really good days where she is perfectly OK and on track and really bad days where her team and friends have been very concerned," a source shared with E! News.
Here's hoping for much more positive days ahead.