The 29-year-old singer has released a new track entitled, "Unforgettable (Tommy's Song)," a heartfelt track dedicated to model Thomas Trussell III, who died in October 2019 after battling drug addiction. "Two years ago, I lost someone who meant so much to me. His name was Tommy, and he was such a beautiful, special man," Lovato captioned a clip of the song. "I wrote this song the day after I found out that he had lost his battle with addiction. This disease is extremely cunning and powerful." Lovato, who has been open about her struggles with substance abuse, added that proceeds from "Unforgettable (Tommy's Song)" will benefit The Voices Project, a nonprofit recovery advocacy organization founded by Ryan Hampton. The singer also encouraged anyone struggling with addiction to call the Substance Abuse and Mental Health Services Administration's national helpline at 1-800-662-HELP. Following his death in 2019, Lovato paid tribute to Trussell on social media. "Devastated. Please hold your loved ones tight. Tell them they are special and that you love them," they captioned a photo of the late model. "Make sure they know it. RIP to my boo." Earlier this year, Lovato released a two-part magnum opus about their own 2018 overdose: the YouTube Originals docuseries Dancing With the Devil and a companion album of the same name.