3. Macaulay Culkin

The “Home Alone” star spent more time on drugs than he did in the spotlight. He’s even asked J.K. Rowling for a role in the new Harry Potter universe movie on Twitter. It’s not exactly a sign of an actor that’s high on everyone’s list, despite his career starting with the world at his feet all those years ago.

4. Shia LaBeouf

Shia has been on top of Hollywood for as long as anyone can remember, until he had a period where he did all kinds of crazy stuff – like announcing he wasn’t famous anymore on Twitter for 22 times. He also had a weird rap phase where he stole lyrics from other artists and let’s not forget the “Just do it” video. Don’t let your dreams be dreams, man.

5. Melissa Joan Hart

Being Sabrina, the teenage witch sounds like a recipe for success, right? Well, sadly she – like a lot of artists before and after her – fell into the trap of drugs and faded into obscurity due to her habit. She hasn’t done much acting in recent years, and she hasn’t even been asked for the Sabrina remake, but she’s still got a few projects in the future lined up so she’s not entirely done yet!

6. Lindsay Lohan

I mean – what more can we say about this one? I’m pretty sure the tabloids covered everything already. LiLo has been trying to get back into showbiz in recent years and we can only hope she can stay on top this time, but she’ll always have her past haunting her.

7. Demi Lovato

Again, I’m pretty sure the tabloids covered most of Demi’s breakdown already. Her recent overdose is still fresh in our minds, but she’s talented enough to make it back on top if she really wants to.

8. Britney Spears

Ah yes, Britney Spears. We’ll always know what we were doing exactly when Britney decided to shave off her head and yell at the paparazzi. I’m not sure Britney knew what she was doing then, but she seems to be doing well in recent years. Let’s hope she keeps it that way.