
Celebrities have the best hairstylists at their disposal, but every once in a while they'll experience a beauty faux pas on par with, well, something that would happen to a normal human being. We all make mistakes, and sometimes choosing the wrong hair color—or letting a colorist talk us into something–is just par for the course.
Kristen Stewart
We're relieved that Kristen's fiery orange-red with visible brown roots is just for her role in the upcoming comedy "American Ultra."

Ciara
Nowadays Ciara sports a gorgeous subtle ombre that we love, but it took her a few years, and a few slightly scary in-between stages, to get there.

Jessica Simpson
Never, under any circumstances, should your hair color match your skin tone exactly.

Ashley Greene
Bright, primary-color red hair? Only acceptable on superheroes.

Rachel McAdams
Rarely does copper strawberry blonde ever look good on anyone who wasn't born with it, and Rachel is no exception.

Lindsay Lohan
We like Lindsay best with her natural red hair, but this strange brown-red doesn't make our list.

Ashlee Simpson
This look is the definition of "skunky" hair color.

Drew Barrymore
We don't know what Drew was thinking when she went for this dip-dyed 'do.

Rumer Willis
If your ombre has turned orange, you're doing it wrong.

Scarlett Johansson
Scarlett can pull off lots of unusual beauty looks, but this unnatural auburn is not one of them.

Taryn Manning
Taryn's flat, one-note platinum color looks like it came out of a bottle of Clorox.

Jennifer Love Hewitt
There's just something off about this beige-y blonde that we can't quite place.

Blake Lively
This color would be great on Blake if she were auditioning for the live-action version of "The Little Mermaid."

Anna Faris
This pale, yellow-leaning blonde looks totally out of place on Anna.

Christina Aguilera
Well, this look kind of speaks for itself. Christina definitely "went for it" with this one.