Renée Zellweger's Biggest Hair Transformations Of All Time

Renée Zellweger has a special knack for transforming herself both on- and off-camera, and she's consistently stunned with her wide range of different hairstyles. Known for her blonde tresses, ranging from a honey hue to sometimes icy platinum, the "Bridget Jones's Diary" star made jaws drop when she debuted a cooler-than-ever long pixie for the cover of British Vogue in January. "When you're cutting someone's hair short, they've got to want to do it — it's them who has to love it," hairstylist Syd Hayes told British Vogue. "She was so open to it. It wasn't about Bridget, but more about her as a person."

Whether it's for a role or just a fun changeup, Zellweger is not afraid to try something new, and she manages to look great in all types of hairstyles and colors. Some are such drastic departures from her regular blonde 'do that fans surely did a double-take. From pixies to moody brunettes, the "Judy" star has proven to be a hair chameleon.

After rising to fame from her roles in "Jerry Maguire" and "One True Thing," Renée Zellweger made waves when she cut off her medium-length hair and showed off an adorable pixie during the 1999 Academy Awards. She kept her bangs long and parted them in the middle, adding some curls at the crown for volume. The short style highlighted Zellweger's oval face and high cheekbones perfectly, and it remains one of the best celebrity pixie cuts to inspire your next super short haircut.

Instead of keeping with her character's blonde hair, Renée Zellweger went the complete opposite direction and chose to promote "Bridget Jones: The Edge of Reason" as a brunette in 2004. The almost inky-black shade complemented her porcelain face, which she kept mostly bare except for a hint of rosy blush and matching lipstick. Zellweger kept her shoulder-length style simple, with just a hint of waves and a side part. This is one moody Y2K look that we're here for, and we wouldn't be mad if Zellweger returned to her dark hair phase once again.

For the first time ever since becoming a huge Hollywood star, Renée Zellweger rocked red hair in 2005 at the "Mr. Abbott" Awards in New York City. To add even more flair to her shocking transformation, Zellweger added low-maintenance baby bangs that ended just above her eyebrows, which were also colored to match her new hue. The warm cinnamon shade brought out the native Texan's blue eyes, and her vampy expression showed how confident she was rocking her red hair.

Playing Judy Garland in the titular film was one of Renée Zellweger's biggest on-screen transformations. With a short, dark 'do teased at the crown and bright red lipstick, Zellweger nailed her look for the role. Of course, the changed appearance was all due to hours of makeup, prosthetics, and wigs, but she nonetheless was an almost identical replica of the "Wizard of Oz" star. Even Zellweger couldn't believe how different she looked and shared during the "Judy" premiere (via Vanity Fair), "I went, 'Wow!' Jeez, Judy's features and her defining physical characteristics were instantly recognizable. It felt like it wasn't me underneath the wig and makeup."

Renée Zellweger looked pretty in pink as she was spotted filming a scene for Season 5 of "Only Murders in the Building." Wearing a white coat over her bubblegum-pink blouse, Zellweger also sported warm cinnamon hair with '50s-inspired flipped-out ends. The color was a far cry from her regular blonde hair and former darker red shade from years ago, and although it's unclear if she's wearing a wig, we wouldn't be surprised if Zellweger fully dyed her locks to get into character. While her role is being kept under wraps ahead of the new season, Zellweger's presence in the star-studded cast will certainly be to die for.