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After his recent illness, Zayn Malik has fortunately reunited with his One Direction bandmates in Orlando for a special concert performance Tuesday night.

Before flying to America to take the stage with his buddies, the crooning cutie was noticeably absent from the group's appearance on Today Monday morning to promote the release of their new album Four at Universal Orlando Resort—and everyone wanted to know why.

Matt Lauer had his own theories (which didn't sit well with the ill singer) and Liam Payne explained that his pal had a "tummy bug," but Louis Tomlinson told E! News what was really going on...oh, and just a warning: TMI ALERT.

"He's got a poo problem," Louis told us. "And that's the truth and he's really not gonna like me saying that."

LOL! Well, at least that seems to be under control now.

Matt Lauer, One Direction

Gustavo Caballero/Getty Images

"Obviously this is the biggest day of our year for our album, we've worked so hard on it. He'll make a speedy recovery, I'm sure," Liam said at the time.

Along with singing some of their new songs, the guys recalled their recent royal encounter when they met Prince William and Kate Middleton.

"That was so amazing doing the Royal Variety in the U.K. the other day and then obviously we got to do the Band-Aid thing this week, which is for a great cause, with Bono," Payne told Lauer and Al Roker. "It was so, so good. So good. And we can't believe we get to be around such music legends."

It was also a little nerve-wracking. Liam added, "Yeah, massively. I got sweaty palms and obviously you have to do all the hand-shaking so I was like trying not to get sweaty."

The guys also dropped in on Universal's Wizarding World of Harry Potter while in Orlando, and made sure to have some extra fun with it by going undercover and surprising fans, which was then, of course, shared on social media.

I'm a wizard!?

A video posted by Liam Payne (@fakeliampayne) on