The 'Beat Of My Drum' singer - who worked with Rihanna on Sky Living's new fashion series 'Styled To Rock' - says she feels akin to the superstar and her bold dress sense because they share the same love of experimentation and originality.
Nicola told LOOK magazine: ''I don't have any rules when it comes to fashion and I think she's the same.
''She's truly original. She portrays what she wants to portray through her clothes, and it changes all the time.
''And that's something I try to do.''
The flame-haired beauty is famed for her quirky and feminine style, but admitted she gets bored easily and constantly feels the need to mix it up.
Nicola explained: ''I often say I've found my style, but in six months it'll be different.
''Hair, make-up, style, music taste - it's always changing. I'm very fickle.
''It's just fun to try new things - like Pink hair this year. I get bored so I change my look all the time.''
Nicola joins Henry Holland and Rihanna's stylist Lysa Cooper on the judging panel in the hunt for the next big fashion designer.