Alexa Ray Joel is famous for three reasons: her music, her parents (Billy Joel and Christie Brinkley), and regretfully, a battle with depression that landed her in the hospital after an overdose on Dec. 5.
"I felt like I was in a black hole and I couldn't see out," Joel, 24, reveals in the new issue of PEOPLE. "I hit rock bottom that day . . . A part of me wanted people close to me to know