Gary Barlow has revealed he thought he was about to faint on live TV as he made a bizarre early exit during an interview on The One Show.
Appearing alongside his Take That bandmates, the singer started to respond to a question from presenter Richard Osman before saying he felt unwell and leaving Howard Donald and Mark Owen on the BBC sofa.
Barlow said: "Can I leave you guys to it? I don't feel very well, excuse me," and walked off set to the bafflement of viewers.
However, the singer managed to return several minutes later for a performance of the band's latest single, Giants.
The incident left Osman and fellow presenter Angela Scanlon confused as they attempted to continue with the interview.
Making light of Barlow's departure, Owen said it was a "bit weird now" before also jokingly leaving the set.
In a post on Twitter minutes after the show ended, Barlow said he was "absolutely fine".
He wrote: "Thank you all for the messages. I'm absolutely fine. We had a very hot dressing room and I thought I was going to faint on live TV."
The trio were on the BBC show to promote their upcoming tour and latest album, Wonderland.
Before Barlow moved to clarify the reason for his departure, fans speculated over the cause of his illness.
One viewer on Twitter suggested he saw Osman and "realised he had forgot to record Pointless".
Alan Baxter said: "I reckon Gary suddenly realised he needed the toilet on the one show."
Dominc Walker wrote: "I presumed @GaryBarlow went off to get ready to perform, not so sure now. Is he OK ?" as a number of other fans sent the pop star messages of concern.
Donald joked on Twitter that Barlow had rushed off set to visit the toilet.
He posted: "Please don't worry about Gary. He told me he was touching cloth before he went on. He obviously went off to lay one."