Songfacts®:

• This song finds the guys singing about the moment when they let the girl they love get away:
  
  Now I'm searching every lonely place
  Every corner calling out your name
  Trying to find you but I just don't know
  Where do broken hearts go?
  
  The 1D quintet will go to extraordinary lengths to find their lost loves again.
• Harry Styles wrote this stadium anthem with:
  
  Julian Bunetta, who is the co-writer of multiple 1D hits including "Best Song Ever," "Story of My Life" and "Steal My Girl."
  
  Irish singer-songwriter, Ruth-Anne Cunningham, who at the age of 17 won an ASCAP Pop Award for co-penning JoJo's hit "Too Little, Too Late." She has since had songs recorded by artists such as Britney Spears ("Work Bitch"), Pixie Lott ("Broken Arrow") and Professor Green ("Remedy" ). She also supplied vocals for the latter track.
  
  American singer-songwriter and musician Theodore Geiger, who is best known for his debut single, "For You I Will (Confidence)," which peaked at #29 on the US Hot 100 when he was just 17-years-old. He previously co-penned "Little Black Dress" for 1D's Midnight Memories album.
  
  Los Angeles-based songwriter Ali Tamposi, who best known for co-writing Kelly Clarkson's hit single "What Doesn't Kill You (Stronger)." Ali has also written for many other artists including Beyoncé ("Save the Hero"), Demi Lovato ("Never Been Hurt") and Ciara ("Overdose")
• Zayn said during a 1D Four Hangout chat that this is his favorite Four track because, "it's a song [he] would be proud to hear on the radio."