Hmm, is this a temporary colour change, do we think? Or could it be something more permanent in preparation for the 'Fancy' singer's upcoming wedding to LA Lakers player Nick Young?
Iggy, who is already planning her big day to the basketball star, is no stranger to a splash of colour in her hair, and with the likes of Lauren Conrad going red, and Adele trying out a choppy bob, it wouldn't surprise us if she was the latest celeb to dabble with a brand new do for the festive season.
But it could just be temporary, of course.
Iggy debuted her new look on Instagram last Thursday (17 December) when she posted the above selfie with absolutely no words to explain her transformation! She then posted another pink hair snap on Tuesday (22 December)... but again with no words explaining her new look.
2015 has most certainly been the year for pink hair. It's literally swept celebsville with everyone from Pixie Lott and Kimberley Walsh to Kendall Jenner and The Big Bang Theory's Kaley Cuoco experimenting with various shades of pastel and hot pink tones.
Why has it been such a popular hair colour choice? Probably because it seems to suit everyone! And like many celebs before her, we think Iggy also looks pretty darn fabulous with her pink locks.
But what do you think? Do you prefer Iggy as a blonde or with hot pink tresses? And do you reckon her colour change is for real or will she be back to blonde in a flash?
Only time will tell.
In the meantime, if you fancy adding a flash of temporary pink to your locks, try Models Own Festival Hair Spray in Neon Pink, £4.99, superdrug.com or Pixie Lott Paint Hair Chalk Pen in Pink, £1.99, superdrug.com.
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