Pregnant Halsey and Paris Hilton led the celeb support for "warrior" Demi Lovato 's explosive documentary.
Demi Lovato: Dancing with the Devil documented Demi's near-fatal 2018 overdose which left her with brain damage after a heart attack and three strokes.
In the dramatic trailer, the songstress revealed doctors thought she would die in 5-10 minutes.
Celebrities' outpouring of love and support flooded the comments section of the trailer promoted on the singer's Instagram account.
Halsey wrote: "Warrior!!!" She shared three muscle arm emojis.
Newly-engaged Paris posted three smiley emojis with heart eyes.
Pretty Little Liars star Lucy Hale wrote: "Speechless." A heart emoji was added to her post.
Nikkie de Jager, better known for her YouTube name Nikkie Tutorials, wrote: "I love you too much."
Model Iskra Lawrence penned: "Love you."
The tear-jerking trailer for the factual film dropped on YouTube and Demi's Instagram on Wednesday sparking a huge reaction from celebs and fans alike.
Speaking out, Demi gave intimate details of her problems including brain damage and blind spots on her vision.
Sorry Not Sorry's hitmaker almost lost her life when she relapsed in 2018 after she was sober for six years.
In two years, she has completely turned her life around after her overdose and going to rehab.
The singer made further candid revelations at the documentary's Television Critics Association panel with director Michael D. Ratner.
According to People, Demi said: "I was left with brain damage, and I still deal with the effects of that today. I don't drive a car, because I have blind spots on my vision.
"And I also for a long time had a really hard time reading. It was a big deal when I was able to read out of a book, which was like two months later because my vision was so blurry.
"I dealt with a lot of the repercussions and I feel like they are still there to remind me of what could happen if I ever get into a dark place again...
"I'm grateful for those reminders, but I'm so grateful that I was someone that didn't have to do a lot of rehabbing. The rehabbing came on the emotional side."
*Demi Lovato: Dancing with the Devil comes out March 23 on YouTube
