Demi Lovato's mother, Dianna De La Garza, has spoken out about the frightening moment she learned her daughter had overdosed.

The singer, who came out last year, was hospitalized earlier this summer after being discovered conscious but unresponsive. In a sad bit of foreshadowing, her recently released track "Sober" was an apology to those who love her for breaking her sobriety.

De La Garza told Newsmax in her first interview on the subject about how she was stunned when she began receiving text messages expressing concern and wishing her and her family the best, with no idea what they were talking about.

She then received a call from Lovato's assistant, Kelsey Kershner, who told her what no parents ever wants to hear.

"She said, 'Demi overdosed.' I was in shock, I didn't know what to say. It was just something that I never, ever expected to hear as a parent, about any of my kids. I hesitated to ask, but I had to ask her. It just seemed like the words took forever to come out of my mouth. I said, 'Is she okay?'"

De La Garza said she "knew we were in trouble" when the answer came back that Lovato was conscious but non-communicative.

"She just didn’t look good at all," she said of first seeing her upon arriving at the hospital. "She was in bad shape but I said to her, 'Demi, I’m here. I love you.' And at that point, she said back to me, 'I love you too.'"

"From that point on I never allowed myself to think that things weren't going to be okay," De La Garza added. But she admitted that "we just didn't know for two days if she was going to make it or not."

She said that Lovato is now doing "really well," and is "happy and healthy, and...is working on her sobriety."

The singer posted a statement last month thanking those who have been supportive of her during this difficult period, including her family, fans, and hospital staff, and pledging to recommit to the road to recovery.

De La Garza published a book about her family's struggles called Falling with Wings: A Mother's Story, and said she now hopes to become part of the fight against the opioid epidemic.

Watch the full interview below.