[Verse 1: Liam & Harry] People say we shouldn't be together, we're too young to know about forever But I say they don't know what they talk talk talking about (Talk talk talking about) Cause this love is only getting stronger, so I don't wanna wait any longer I just wanna tell the world that you're mine girl, oh [Chorus: Zayn & All] They don't know about the things we do They don't know about the I love you's But I bet you if they only knew They would just be jealous of us They don't know about the up all nights They don't know I've waited all my life Just to find a love that feels this right Baby they don't know about, they don't know about us [Verse 2: Niall & Harry] Just one touch and I was a believer, every kiss it gets a little sweeter It's getting better Keeps getting better all the time girl [Chorus: Zayn & All] They don't know about the things we do They don't know about the I love you's But I bet you if they only knew They would just be jealous of us They don't know about the up all nights They don't know I've waited all my life Just to find a love that feels this right Baby they don't know about, they don't know about us [Bridge: Louis & Niall & (Zayn)] They don't know how special you are They don't know what you've done to my heart They can say anything they want Cause they don't know about us They don't know what we do best That's between me and you, our little secret (But I wanna tell 'em I wanna tell the world that you're mine girl) [Chorus: All & Zayn] They don't know about the things we do They don't know about the I love you's But I bet you if they only knew They would just be jealous of us They don't know about the up all nights They don't know I've waited all my life Just to find a love that feels this right Baby they don't know about, they don't know about us They don't know about the things we do They don't know about the I love you's But I bet you if they only knew They would just be jealous of us They don't know about the up all nights They don't know I've waited all my life Just to find a love that feels this right Baby they don't know about, they don't know about us They don't know about us