Lovato designed T-shirts (available at regularhero.org) for her "Hope Dealer" campaign, and 100-percent of the proceeds go to the Lovato Treatment Scholarship Program, which raises money for mental healthcare. The singer joins a slew of celebrities – including Miley Cyrus, Alicia Keys and Ian Somerhalder – who have taken to Facebook to share social causes close to their hearts. Lovato first entered treatment in 2010, before revealing her struggle with mental illness, an eating disorder, self-harm and drug use. Last year, the "Really Don't Care" singer told Cosmopolitan for Latinas she keeps her bipolar disorder in check with medication. "It's a daily thing," she said, adding "medicating, checking in with people, being honest and being grateful for things" were part of her recovery and maintenance. As for the body-image demons she's dealt with, Lovato said: "For me, loving and accepting my flaws … Being comfortable in my own skin also makes me feel beautiful."