Take That singer Gary Barlow has said that he walked off the set of BBC's The One Show on Friday night as he thought he was about to faint on live television.

Barlow was on the programme with his bandmates Howard Donald and Mark Owen to promote the trio's upcoming tour and new album, Wonderland.

Gary Barlow was on the programme with his bandmates to promote the trio's upcoming tour and new album

Having been asked by host Richard Osman if the group had anything special planned for their live dates, Barlow started to answer but then said: "Can I leave you guys to it? I don't feel very well, excuse me."

As Barlow walked off, One Show presenter Angela Scanlon asked him: "Are you alright?"

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The interview resumed with Donald and Owen but the singers' minds were elsewhere with the latter saying: "It feels a bit weird now that Gaz is just not feeling himself." 

However, Owen then tried to make light of the situation by jokingly leaving the set himself.

Mark Owen looks to see if Gary Barlow is ok while Howard Donald continues the interview

Barlow returned a few minutes later to perform Take That's new single, We Are Giants.

When the show ended, he took to Twitter to thank fans for their concern and to reassure them that he was "absolutely fine". 

"We had a very hot dressing room and I thought I was going to faint on live TV," he explained. 

Donald, meanwhile, shared too much information in his update:

Take That are due to play sold-out shows at Dublin's 3Arena on May 15 and 16.