By Wonderwall.com Editors
8:05am PDT, Oct 25, 2013
Gena Oppenheim
There are a few things you aren't supposed to ever ask a woman, like her age, her weight and if her hair color is natural. But we did a little digging and found a bundle of celebrity redheads — like Julia Roberts, who turns 46 on Oct. 28 — who aren't genuine gingers! Click through as we reveal their natural hair color …
Julia Roberts
This stunning star is known for her beautiful crimson waves, but Julia's natural locks are actually …
celebs who aren't natural red heads
Dirty blond! Either way, she'll always be a "Pretty Woman" in our eyes.
celebs who aren't natural red heads
Emma Stone
This spokesperson for Revlon admitted to Teen Vogue that she only went red for her breakout role in the 2010 film "Superbad," but before her days on the big screen, the beauty was actually born a …
celebs who aren't natural red heads
Blonde! Still, Emma prefers her ruby shade. "I identify most with red hair. My mom's a redhead, so maybe I grew up seeing it more than seeing myself in a mirror. But I like blond, too. It's just hair," she told the Daily Makeover.
celebs who aren't natural red heads
Blake Lively
Blake enlisted the help of colorist Rona O'Connor when she decided to dye her locks a very specific red for a role in "Hick." In 2011, the expert told Glamour that, "A lot of thought went into it, because she definitely wanted to go back," to her natural color.
RELATED: The top 12 hottest redheads
celebs who aren't natural red heads
Which is "New York Blonde," according to Rona. Do you like her lighter look?
celebs who aren't natural red heads
Christina Hendricks
This "Mad Men" star is mad about "Anne of Green Gables," so she started dyeing her hair red when she was just 10! "There was something that spoke to me about her," she told the L.A. Times in 2010, "and I wanted to have her beautiful red hair." But before she discovered drugstore hair dye Christina was a …
celebs who aren't natural red heads
Blondie! This is the lightest we've seen the 38-year-old's tresses in a long while, that she went red during her youth.
celebs who aren't natural red heads
January Jones
Oh no! "I have been every color and now my hair is falling out in clumps," the 35-year-old recently told Grazia Daily. Maybe she should consider going au naturel …
RELATED: January Jones becomes a redhead?
celebs who aren't natural red heads
As a blonde! Hopefully, the damage isn't that bad and January was just kidding when she said, "I'm going to have to shave it off and wear a wig."
celebs who aren't natural red heads
Rachel McAdams
The "Notebook" star has sported a slew of different shades in her hair over the years from pink to cherry red, but at the end of the day her roots are always going to grow back …
celebs who aren't natural red heads
Brunette! Her bout with ginger locks was fun, but do you prefer Rachel's natural hue?
celebs who aren't natural red heads
Amy Adams
The "Enchanted" starlet credits her rise to fame to her scarlet tresses. She explained to British InStyle, "There was a definite shift in my life when I decided to go red." But when she was just starting out, she was a …
celebs who aren't natural red heads
Strawberry blonde! Amy added, "When you're blond, people associate it all with being flirty. With red hair, suddenly you're quirky."
celebs who aren't natural red heads
Alyson Hannigan
This mom of two's artificial ginger locks aren't a far cry from her mixed-tone unprocessed hair color. The "How I Met Your Mother" sweetheart describes her roots as …
RELATED: Guess their natural hair color
celebs who aren't natural red heads
"It's kind of an auburn. So there's red in it, but it's mostly brown," she revealed to the N.Y. Post in 2006.
celebs who aren't natural red heads
Debra Messing
It reportedly took six hours for this 45-year-old star to achieve her iconic red hair in 1996, but it was well worth it since her ruby mane has become her trademark.
celebs who aren't natural red heads
Surprisingly, Debra is a natural brunette! Do you think her character on "Will and Grace" would've been the same without those signature red curls?
celebs who aren't natural red heads
Brittany Snow
Blondes don't always have more fun! The "Pitch Perfect" star, who we've come to know as a token blondie, told Celeb Buzz, "I felt like I was having the most fun as a redhead because it was kind of fiery …"
celebs who aren't natural red heads
Despite being a natural brunette, she revealed that: "I feel better as a blonde I think."
RELATED: Fashion Don'ts
celebs who aren't natural red heads
Kate Walsh
"I felt like an impostor before. I'm stronger and sassier as a redhead. It's much more me," the "Private Practice" star told Shape in a 2012 interview. Before she found her inner strength, Kate was a ….
celebs who aren't natural red heads
Brunette! Still, we can't imagine Kate any less sassy regardless of the hue of her hair.
celebs who aren't natural red heads
Cynthia Nixon
"The recognition factor is so much higher when I'm a redhead," the 47-year-old explained to Marie Claire in 2012 of her famous "Sex and the City" hairstyle. Would you recognize her if she was walking around with her untreated hair color?
celebs who aren't natural red heads
Cynthia doesn't think so. She explained, "When I'm a blonde I can pass under the radar a lot more easily."
celebs who aren't natural red heads
Lucille Ball
This lovable actress went red when she got into acting to stand out, and boy did it work! We're always going to love Lucy even though underneath those famous carroty locks is a …
celebs who aren't natural red heads
Brunette! We wonder which tint Ricky liked better!
