[Chorus: Perrie]
Singin', singin', singin'
Ooh, la, la, he breaks my heart
I know he thinks about her when he plays guitar
And, ooh, la, la, my American boy
(Singing, singing, singing)

[Verse 1: Jesy]
And I met him back when I was out in Californ-I-A
He was playin' in a band and she was dancin' on a stage
And he says that I'm the one, but she's the one that got away
And he never knew her real name

[Pre-Chorus: Leigh-Anne]
Oh, and I don't mean to get so caught up
And insecure 'bout all the things you say (Say, say, say, say)
Oh, and I don't mean to be jealous, it's just careless me
Boy, I must drive you mad

[Chorus: Perrie, Perrie & Jesy]
Singin', singin', singin'
Ooh, la, la, he breaks my heart
I know he thinks about her when he plays guitar
And, ooh, la, la, my American boy
Singin', singin', singin'
Ooh, la, la, he breaks my heart
I know he thinks about her when he plays guitar
And, ooh, la, la, my American boy
My American boy
[Post-Chorus: Leigh-Anne & Jade]
American, 'merican, 'merican boy
You know it's my American boy (Hey)
American, 'merican, 'merican boy
You know it's my American boy (Hey)

[Verse 2: Jade]
So, I wanna know who's on your phone
Making me paranoid, making me bad
Making me sad, making me crazy
And making me feel like I needed to ask
I wanna know if you're at home
And if you're at home, baby, are you alone?
Are you alone? Answer your phone
Oh, baby, no, no, no

[Pre-Chorus: Leigh-Anne]
Oh, and I don't mean to get so caught up (Say)
And insecure 'bout all the things you say (Say, say, say, say)
Oh, and I don't mean to be jealous, it's just careless me
Boy, I must drive you mad

[Chorus: Perrie & Jesy, Leigh-Anne, Jade, Jesy]
Singin', singin', singin'
Ooh, la, la, he breaks my heart (He breaks my heart)
I know he thinks about her when he plays guitar
And, ooh, la, la, my American boy (Oh, la, la, la, la)
Singin', singin', singin'
Ooh, la, la, he breaks my heart (Yeah)
I know he thinks about her when he plays guitar
And, ooh, la, la, my American boy (Singin', singin', singin')
My American boy
[Post-Chorus: Leigh-Anne & Jade, Perrie]
American, 'merican, 'merican boy (Oh, woah)
You know it's my American boy (Hey)
American, 'merican, 'merican boy
You know it's my American boy (Hey)

[Bridge: Jesy & Jade, Perrie, Leigh-Anne]
Singin', ooh, la, la, ooh, la, la
I know he thinks about her when he plays guitar (When he plays guitar)
Ooh, la, la, he breaks my heart
He do (My American boy)

[Chorus: Perrie & Jesy, Jade, Leigh-Anne, Jesy]
Singin', singin', singin'
Ooh, la, la, he breaks my heart
I know he thinks about her when he plays guitar (When he plays guitar, no)
And, ooh, la, la, my American boy (Oh, la, la, la, la, la, la)
Singin', singin', singin'
Ooh, la, la, he breaks my heart (Yeah)
I know he thinks about her when he plays guitar
And, ooh, la, la, my American boy (Boy, boy, oh)
My American boy

[Post-Chorus: Leigh-Anne & Jade, Perrie, Jesy]
American, 'merican, 'merican boy (American, 'merican boy)
You know it's my American boy (Boy; hey)
American, 'merican, 'merican boy
You know it's my American boy