Nicola Roberts has taken the plunge – and dyed her hair bright crimson.
The Girls Aloud star, 22, was arriving at a party in London when she showed off the stunning new look.
Wearing a black frock and stilettos, she joined Kimberley Walsh, 26, as they celebrated her sister Sally’s birthday at London's Burlington club.
Cheryl Cole, 25, also made an appearance in a shimmery black dress.
SEE PICS: Celebrity hair gallery>>
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