Although fans have tried to decipher as much as they can with what they've been given, the only lyrics they've been given are "I keep on coming back to you".
With that, many believe it's about his girlfriend Eleanor Calder. Although, the lyrics have supposedly been leaked, and they're pretty intense!
Although nothing has been confirmed, fans are taking the "I call you but you never even answer" line as a response to the very freaking sad song, "From The Dining Table" on Harry Styles' new album, which fans believe is about Louis.
Harry's lyrics include, "Even my phone misses your call, by the way / Maybe one day you'll call me and tell me that you're sorry too."
This, with the combination of that fan theory that Harry appears in the video clip, and we're losing our damn minds.
"Back To You" is released July 21.