"I'm not gonna lie. I was self-medicating. I was doing things like drinking and using, like a lot of teens do to numb their pain," Lovato told Seventeen magazine about her substance abuse issues, which landed her in rehab in December 2010 after a public meltdown. "'Sober is Sexy' is my new motto, and it couldn't be more true! All you need to have fun in life is a great attitude and good friends. I've made a commitment to myself to live a happy, healthy life the best way I know how, and I want to spread the message that you don't need to do drink or do drugs to have fun."