That can't be the same person. The girl on the left has a tattoo on the inside of her right arm, while Amy on the right doesn't.
But of couse this proves how far some people can take drugs. Amy probaby did look like that at one point and abused drugs so badly that she turned into the person we all can't stand to look at today. I'm know it's sad to say this, but I'm waiting for the news report to come out saying they found her dead with a needle stuck in her arm.