But what if they didn't land this amazing gig?
Turns out, Harry Styles had his sights set on something we never would have expected: he said he'd have studied to be a lawyer!
During a recent interview with Entertainment Tonight, Harry revealed, "I wanted to be a physiotherapist and then all my teachers told me, 'No jobs in that.' [So] I decided I wanted to be a lawyer."
We love that he followed it up with this disclaimer: "This happened before I had to start working hard enough to be a lawyer. Now I can be like, I would have been a lawyer."
Louis Tomlinson wanted to be a teacher, while Niall Horan said he doesn't "have a clue" what he'd be, explaining, "I don't know how I would have done on my exams, but I hope I would have gone to university. What would have happened there is a different story."
We're glad that wasn't the story!