Rita Ora

Miley Cyrus and Rita Ora both rock crazy rainbow hair

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Who said the rainbow hair trend was dead? Not Miley Cyrus and Rita Ora. Both girls took to Instagram to showcase their new multi-coloured 'dos - although Miley's wasn't TOTALLY permanent.

The singer, who posted about a gazillion Instagram photos over the past few days, included some of a pretty awesome rainbow wig:

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Obviously that's a temporary look - but we kind of like the crazy style. More permanent was her little pink bun, which she also showed off on Instagram:

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Joining her in the rainbow hair club was Rita Ora, who revealed this My Little Pony-esque hairstyle, captioned "taste the rainbow".

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Looks like her new style was temperorary too, as Rita swiftly posted more pics of a shorter hairstyle with a purple dip-dye:

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Looks like these girls have been swapping hair tips - but which is your fave - Rita's rainbow, or Miley's neon streaks? Comment below: