Niall Horan went "white as a sheet" when he angered a crowd of One Direction fans.
The 21-year-old singer was performing in Australia with the chart-topping group when he accidentally got the name of the city they were in wrong.
He said: "You get a small group of people boo you a little bit. It's such a simple mistake.
"I did it once on this tour in Australia. I called Brisbane Sydney or something like that. I went white as a sheet."
It is not just Niall who has made the faux pas as bandmate Liam Payne revealed he, too, had made a similar mistake before.
He told Coca Cola Mexico: "When we were in Ireland ... we'd just come from Birmingham and I shouted out, 'Come on, Birmingham!'"
Meanwhile, the band have recently been rocked by the departure of Zayn Malik from the group but the 22-year-old singer's close pal Naughty Boy has insisted there is no "bad blood" between Zayn and the four remaining members - Niall, Liam, Louis Tomlinson and Harry Styles.
He told BANG Showbiz: "I don't think there's any real bad blood, especially from this side. I just want people to support him and prepare for his future. I think people just need to respect his reasons for leaving.
"Right now it's down time for Zayn but I think there is a journey for him, I think for any kind of band there has to be a destiny for each of them. Nothing lasts forever."
Tagged in Niall Horan Liam Payne Louis Tomlinson