Here's what she said:
I want to do this because one, it was such an incredible experience the last time we did this on tour," Lovato said. "I've actually met people that go to CAST because they went to CAST on tours and realized they needed to get sober or they needed to better themselves in some other way and it's changed lives and I want to be able to do that again. It's a part of my whole...life, about giving back and I think it's really important that I continue to do this while I'm on tour.