[Verse 1: Justin Bieber]
Everybody's laughin' in my mind
Rumours spreadin' 'bout this other guy
Do you do what you did when you did with me?
Does he love you the way I can?
Did you forget all the plans that you made with me?
'Cause, baby, I didn't

[Chorus: Justin Bieber, Rascal Flatts, Both]
That should be me holdin' your hand
That should be me makin' you laugh (Yeah)
That should be me, this is so sad
That should be me, that should be me (Ooh, oh)
That should be me feelin' your kiss (Feelin' your kiss)
That should be me buyin' you gifts (Buyin' you gifts)
This is so wrong, I can't go on (I can't go on)
'Til you believe
That that should be me
That should be me (No, oh-oh, ooh)

[Verse 2: Rascal Flatts, Justin Bieber, Both]
You said you needed a little time for my mistakes
It's funny how you used that time to have me replaced
Did you think that I wouldn't see you out at the movies?
What you doin' to me?
You're takin' him where we used to go
Now if you're tryna break my heart, it's workin' 'cause you know that
[Chorus: Justin Bieber, Rascal Flatts, Both]
That should be me holdin' your hand (Holdin' your hand)
That should be me makin' you laugh (Oh)
That should be me, this is so sad (This is so sad)
That should be me, that should be me (That should be me)
That should be me feelin' your kiss
That should be me buyin' you gifts
This is so wrong, I can't go on
'Til you believe ('Til you believe)
That that should be me

[Bridge: Justin Bieber & Rascal Flatts, Both]
I need to know (I need to know)
Should I fight for love or disarm? (Should I fight for love)
It's gettin' harder to shield (It's gettin' harder to shield)
This pain in my heart
(Woo, hey yeah)
(Ooh-ooh)

[Chorus: Justin Bieber, (Rascal Flatts), Both]
That should be me holdin' your hand
That should be me makin' you laugh
That should be me, this is so sad (That should be me)
That should be me, that should be me
That should be me feelin' your kiss
That should be me buyin' you gifts (That should be me)
This is so wrong
I can't go on
'Til you believe
That that should be me
Holdin' your hand, that should be me (Oh yeah)
The one makin' you laugh, oh baby (Oh-oh, baby)
Oh, that should be me (That should be me)
That should be me givin' you flowers (That should be me)
That should be me talkin' for hours oh (I never should've let you go oh oh, oh baby)
That should be me (Ooh, baby)
That should be me (That should be me, yeah)