Amanda Bynes - Amanda Bynes' public meltdown was just difficult to watch. This former child star always upheld a certain grace and standard and it broke our hearts to see that all go out the window.

Lindsay Lohan - Lindsay started out as an incredibly talented child actress with an adorable charm and a promising career ahead of her. Looking at the before and after, it's probably safe to assume that LiLo did all the drugs and there's nothing promising about that.

Miley Cyrus - C'mon, you knew you'd see her name on this list. She's the child star who literally changed overnight from a young bombshell to ... well, whatever this is.

Christina Aguilera - Christina has one of those stunning voices that doesn't need all of the cheap tricks other pop stars use to stay relevant. Unfortunately, she doesn't seem to realize that...

Kristen Stewart - From a proper-looking little girl to someone trying way too hard to be the "rebel", K-Stew has been angering her fans for a while now. From her affair with a married director to her general attitude, we'd love to see a little more of that class she had during her childhood years.

Nicki Minaj - When Nicki started out, she was a fresh-faced vocalist with some serious talent. She's still just as talented but it's hard to see that sometimes under all of the implants and crazy...

Mischa Barton - Young Mischa started a promising career at the age of 4. The little actressmodel later found success in her adult career only to be hindered by a series of tragic meltdowns.

Lady Gaga - You'd never know such a lovely woman was underneath all of the costumes and makeup. Sure, we love the creative energy but she could definitely take it down a notch as far as offensive performances and statements go...

Rihanna - When we first heard of Rihanna, she was this captivating, foreign good girl but after a taste of fame, that all changed quickly. It's hard to believe that anyone so gorgeous would feel the need to do anything to stay in the spotlight

Keha - Before her name had a dollar sign in it, Keha was just Kesha, the charming teenager who liked performance art. Kudos to Keha for reinventing herself but we'd love to see what she could really do without the trashed out party girl image.