Must Be Love
 作词 : Niall Horan/Ben Kohn/James Napier/Peter Kelleher/Philip Plested/Tom Barnes
 作曲 : Niall Horan/Ben Kohn/James Napier/Peter Kelleher/Philip Plested/Tom Barnes
 I'm a specialist at overthinkin' everything
 I'll tell you all about it if you have the time
 I've become a mastermind at goin' and vanishing
 Until I feel as empty as this bottle of wine

 Oh, if I'm being honest, I find it so hard
 To just keep it simple and follow my heart

 But if it feels like la, la, la, la, la, la, love
 If it feels like la, la, la, la, la, la, love
 If it feels like love
 Then it must be love

 I got a first degree in being my worst enemy
 I got a PhD in always running away

 And if I'm being honest, it scares me to death
 I'm trying to stop it, I'm trying my best

 But if it feels like la, la, la, la, la, la, love
 If it feels like la, la, la, la, la, la, love
 If it feels like love
 Then it must be love
 Yeah, it must be love
 Yeah, it must be love

 Oh, if I'm being honest, I find it so hard
 To just keep it simple and follow my heart

 But if it feels like la, la, la, la, la, la, love
 If it feels like la, la, la, la, la, la, love
 If it feels like love
 Then it must be love
 Yeah, it must be love (If it feels like love)
 Yeah, it must be love (If it feels like love)
 Yeah, it must be love (If it feels like love)
 Then it must be love