This Katy Perry blonde hair reminds of of someone... her boyfriend.

Have you ever noticed how couples who’ve been together a while start to merge into the same person?

It begins with an accidental stray ‘we’, and then before you know it you’re twinning at parties and you’ve converted to veganism.

It happens. Source: Getty

Katy Perry and Orlando Bloom are now well past the matching outfits stage.

The couple flew right through nude paddle boarding and have now graduated to the next level: matching hair-dos.

Recently, Bloom, 40, returned to hisLord of the Ringsroots, dying his hair a shade of blonde Legolas would be proud of.

Nice. Source: Getty

Perry, 32, a well-known hair chameleon, has now followed suit.

I like it. Source: Getty

Now, you might not know this, but the pop star is actually a natural blonde.

And while the same can't be said for her British actor boyfriend, we know he can certainly pull off the look.

The pair have been inseparable since they started dating in the first half of 2016.

Just a couple of days ago Perry even surprised Bloom with a surprise bash for his 40th birthday.

We're not sure when exactly she changed her colour, but it was probablybeforethe party. You know, to maximise the fun.

Check out Katy Perry's best Instagram posts below:

Katy Perry on Instagram

Via Instagram @katyperry

Katy Perry and Orlando Bloom begin a new relationship phase: matching dye jobs.