Entertainment NewsDemi Lovato Is Now 90 Days Sober, Says MotherSavePrintDemi Lovato performs live exclusively for American Airlines cardmembers at House of Blues Dallas in Dallas, on Feb. 9, 2018. Christopher Polk/Getty Images for MasterCardSarah Le10/28/2018|Updated: 7/6/2023Demi Lovato’s mother said the pop star has now been sober for 90 days, which is a big milestone after her recent overdose scare.Dianna de la Garza, a former country music singer, talked about her daughter on Oct. 26 on Sirius XM’s “Conversations With Maria Menounos” radio show.We had a problem loading this article. Please enable javascript or use a different browser. If the issue persists, please visit our help center.