AceShowbiz -

Demi Lovato was open about her past struggle with alcohol and drug addiction as well as mental health issues. When stopping by "The Jonathan Ross Show" in a recent interview, the former child star talked about the wake-up call that made her agree to seek help.

Rocking a high ponytail and ditching her bra in a Balmain tartan mini dress with sheer paneling, the singer/actress revealed the "final intervention" that helped her sober up. It was the moment when her family threatened to leave and she was banned from seeing her younger sister Madison De La Garza.

"There were a few (interventions by family and friends) but the final one, everyone was like, 'We are no longer going to leave, we are leaving,' " she recalled. "That was the moment when I thought, 'Okay, I really need to get help and get sober.' This time I knew... I had hit rock bottom and I just needed to do this for myself."

"I knew that I had a lot of life ahead of me but one of the main reasons of getting sober was so that I could be around my little sister because my mom and dad [said I couldn't be around her] if I was doing stuff," so the Disney alum opened up.

"I went through some tough times and went to treatment for some struggles that I had and now I've come out the other side," the 25-year-old songstress continued. "I use my stories to help others and inspire them to get the help they need."

"I had family and really close friends and my manager, they all were by my side through everything," she went on. "I wouldn't be here without them. My fans too, I feel they gave me a reason to live and I'm forever grateful."