作词 : Thomas Barnes/Ben Kohn/Peter Kelleher/Iain James/Perrie Edwards/Jesy Nelson/Leigh-Anne Pinnock/Jade Thirlwall/Gavin Jones

作曲 : Thomas Barnes/Ben Kohn/Peter Kelleher/Iain James/Perrie Edwards/Jesy Nelson/Leigh-Anne Pinnock/Jade Thirlwall/Gavin Jones

Does he tell you he loves you when you least expect it

Does he flutter your heart when he kisses your neck

No scientist, or biology

It's obvious, when he's holding me

It's only natural that I'm so affected

And my heart won't beat again

If I can't feel him in my veins

No need to question, I already know

It's in his dna

D-d-d-dna

It's in his dna

And he just takes my breath away

B-b-breath away

I feel it every day, and that's what makes a man

Not hard to understand

Perfect in every way

I see it in his face

Nothing more to say

It's in his d-d-d-dna

It's the blue in his eyes that helps me see the future

Fingerprints that leave me covered for days, yeah yeah

Now I don't have any first degree

But I know, what he does to me

No need to work it out, it's so familiar

And my heart won't beat again

If I can't feel him in my veins

No need to question, I already know

It's in his dna

D-d-d-dna

It's in his dna

And he just takes my breath away

B-b-breath away

I feel it every day, and that's what makes a man

Not hard to understand

Perfect in every way

I see it in his face

Nothing more to say

It's in his d-d-d-dna

It's all about his kiss

Contaminates my lips

Our energy connects

It's simple genetic

I'm the x to his y

It's the colour of his eyes

No he don't need to try

Made from the best

He passes all the tests

Got my heart beating fast

It's cardiac arrest

He's from a different strain

That science can't explain

I guess that's how he's made

It's in his dna

D-d-d-dna

It's in his dna

And he just takes my breath away

B-b-breath away

I feel it every day, and that's what makes a man

Not hard to understand

Perfect in every way

I see it in his face

Nothing more to say

It's in his d-d-d-d