When it feels like it's the two of you against the world, your bond can grow stronger than ever. That's what "They Don't Know About Us" is all about: not even being thousands of miles apart on tour or having your relationship in the tabloids can tear you apart. (Well, sort of — RIP Sophiam.)7. "More Than This"ContentView Iframe URL adidas db3510 Probably One Direction's most well-known love song, this Ed Sheeran-penned number is about appreciating all the things that make up the person you love. When you're head over heels about someone, you don't see the flaws they think they have. Harry might skip over some of the lyrics in concert now, but the sentiment is still sweet.2. "Gotta Be You"ContentView Iframe URLThe songthat launched a thousand Liam memes adidas db3510 and dropping some capital-T Truth philosophy: “You don’t need to go to church to be a Christian, adidas db3510 Was it difficult to find music producers, PR people, executives, and other people inside the story to comment?DB: adidas db3510