Simon Cowell is a little bit worried about One Direction! In an interview with The Sun, their X Factor mentor said that he is concerned they'll burn out if they keep working as hard as they do.
"They can't carry on doing the amount of stuff they've been doing for long because they'll burn out — it's a high-class problem. But they don't complain about working hard," he said.
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Despite their rigorous schedule, he doesn't think they're going to split up any time soon.
"They're going to be around as long as they want to be, because they're talented and good writers — and they understand their fans."
We agree! Still, we know they've been under a crazy schedule. And with Louis Tomlinson and Zayn Malik falling too ill to make it to a few 1D performances, we think he has a right to be a bit concerned they'll work themselves too hard.
They only recently wrapped up their tour, and they're going on their On the Road Again Tour next year. That's an insane schedule!
Are you worried that One Direction is going to burn out? Do you think they need a vacation? Tell us in the comments!