10 most notorious cases of good girl gone bad celebs (With Pictures)

3. Demi Lovato

Drugs are not something you would think Demi Lovato was doing when she was trying to create her own path in Hollywood, but to deny it would be a lie. Demi has openly admitted in the past that when she came to L.A and got her own place, her moods were all over the place. Why? The former Disney star says that she struggled with the fact that everybody in Los Angeles looked perfectly skinny and thin, while she on the other hand, was curvier than the girls she would often surround herself with. This led to Demi’s depression, which saw the singer begin to try to harm herself, embark on a drug addiction, along with strong mood swings. She would go on to seek help in rehab, but admits that an addict never fully forgets.