Simon Cowell is the mastermind behind the major success of One Direction - but even the "History" band's longtime manager isn't sure whether or not the groups' hiatus is really more than that.

In a new interview with Billboard, the Syco Records founder revealed that he doesn't know, nor does he want to know, whether or not 1D will ever record another album or tour together again.

"I don't know if it's a hiatus or a breakup, to be honest," Cowell said. "In a weird way, I don't want to know. I don't think they've had enough time to experience what it's like not being in the group to really answer that."

One Direction, who began their official indefinite hiatus earlier this year, apparently had a lengthy break in the books for a long time. And, according to Cowell, it was a well-deserved break. The boy band had released five albums in five years and embarked on four international tours. And, no matter what, Cowell inherently trusts the remaining four members of One Direction to make the best choice for themselves.

"Whenever I was with them, we talked about [going on a break], and I couldn't argue with them," Cowell revealed. "They had achieved so much in a short period of time, and I didn't want them to get jaded. As I've gotten older, I've learned to trust people more, particularly artists. They'll decide when they want to come back together."

And, with Zayn Malik's solo career just one day away from launching with the release of Mind of Mine, Cowell had to address the other 1D solo prospect in the works: Harry Styles. And, he held nothing back, revealing that the often standout member is working on solo material, though he's being picky about who he works with.

"He'll work out what kind of record he wants to make because he's got great taste - which is always a help," he said. "All the writers and producers want to work with him, understandably, but he probably won't rush into it."