By Amy Lawrenson
It seems the A-list's penchant for coloured hair sees no signs of waning. Everyone from Sienna Miller and Kelly Osbourne to Katy Perry and Dianna Agron have dabbled with Crayola-coloured hair and now January Jones has stepped out with super-subtle streaks of pastel pink woven through her blonde Lob (long-bob).
We love it, but what do you think?
Fancy going for a colourful hairstyle? Read all about Bleach London, the salon that will dye your hair any colour way you dare to, here...