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Hot or Not: Nicola Roberts' fiery red hair

Rex features

Nicola Roberts has always been an advocate of natural beauty, flaunting her red locks and fighting the corner for fair-skinned beauties.

But now the Girls Aloud star has taken red hair to another level by ditching last month's copper toned bob in favour of extensions and a dazzling new shade of orange.

As Nicola left Zuma restaurant in London, her fiery red mane looked virtually neon.

What do you think of the singer's new look?

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Check out more surprising star hairstyle transformations in the gallery below...



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Hair raising star styles

Posh pioneered the blunt bob trend - and it suits her no-nonsense fashion style perfectly. In this uptight up-do (r.), she looks like she's taking her reputation as an ice queen a little too seriously

Hair raising star styles

Is this even a hair style Nicola? The intentional cowlick makes this look far too messy. Volume taken a step too far. Her straight crop is much cuter. Sleek and stylish.

Hair raising star styles

Sandra wowed us when she went pageant-glam for Miss Congeniality and kept up the sex appeal for years (left). However, at the Hollywood premiere of All About Steve on August 26th (right), Bullock's hair looked frizzy and frazzled - not to mention those roots!

Hair raising star styles

Note to Natasha: Just because you're an pop star, you don't have to get all Amy Winehouse on us! Straight blonde locks (and significantly less hairspray) are a vast improvement.

Hair raising star styles

Hey Alicia - No One should be using the "Coneheads" for fashion inspiration! Keys' classic beauty shines in her natural curls.

Hair raising star styles

A messy side 'do really doesn't do any favours for the lovely young star. For a formal look she is much better off going for vintage-inspired waves (l).

Hair raising star styles

Katie's tousled tresses make her look like she's playing dress-up. Her Posh-inspired bob and bangs are picture perfect Hollywood Wife.

Hair raising star styles

Please tell us this mullet chop job is for a movie. When Jada's hair is slightly grown out, shiny and sleek, it's easy to see why she and her hunky hubby are considered one of Hollywood's most stylish couples.

Hair raising star styles

At her best, Heigl successfully channels Veronica Lake. But with too much product, her locks are dingy: No self-respecting bridesmaid would ever leave the house with hair that looks like it was inspired by There's Something About Mary.

Hair raising star styles

Only Bo Derek could be a perfect "10" in cornrows. Her new mommy makeover included trading her Dirrty 'do for Marilyn Monroe-inspired platinum blonde waves

Hair raising star styles