[Verse 1: Luke]
Caught up in Heaven, but your Heaven ain't the same
And I've never been a saint, have I?
This evanescence always fleetin' like a flame
But I'm never one to change, am I?

[Pre-Chorus: Luke]
Call it a lesson when I feel you slide away
And I'm missin' out on half my life

[Chorus: All]
Oh, you make me complete
You make me complete
You make me a complete mess
Oh, you make me complete
You make me complete
You make me a complete mess

[Verse 2: Calum, Calum & Michael]
Hang on to moments like they'll never drift away
'Cause you'll never get to say goodbye
I ask no questions as your colours take their hold
As my darkness turns to gold inside

[Pre-Chorus: Calum & Michael]
I learned my lesson when I felt you slip away
And I'm missin' out on half my life
[Chorus: All]
Oh, you make me complete
You make me complete
You make me a complete mess
Oh, you make me complete
You make me complete
You make me a complete mess

[Bridge: Luke]
You make me a complete mess
You make me a complete mess

[Breakdown: Michael]
Caught up in Heaven, but your Heaven ain't the same
But I've never been a saint, have I?
Sing it with us, let's go!

[Chorus: All, Luke, Ashton]
Oh, you make me complete
You make me complete
You make me a complete mess
Oh, you make me complete (Make me complete)
You make me complete
You make me a complete mess

[Outro: Luke]
You make me a complete mess
You make me a complete mess