Lewis Capaldi urged children who were in the crowd at his Manchester Academy concert to tell their teachers to "f**k off" over the weekend.
The Scottish singer-songwriter, 23, did not censor his language at his show and swore 13 times in less than five minutes.
A dad who took his nine-year-old son told The Sun: "Capaldi was telling nine-year-olds it’s cool to use bad language.
"Plus he was telling them to tell your teachers to f*** off. His language was shocking.”
The father added that there were a lot of children in the crowd and for the star to "say that about teachers was wrong."
The Glasgow native's spokesperson responded to the publication: "This is a joke Lewis has made at a number of concerts.
"The joke sees Lewis recall times in the past he has sworn in front of teachers, but apologises for doing so, and reminds his fans not to do it.
"As part of the joke he quotes himself swearing at teachers, however the message of the joke is Lewis apologising. Lewis does not want 9 year old's to swear at school."
It comes a
The Lost On You singer has shared on how he was inspired for his new song as he reflected on the "aftermath of people blaming themselves" after being struck by the tragedy of a loved one taking their own life.
He told, how as he was only a young child when the devastating event happened, that he spoke to his mum who explained the range of emotions she felt which helped him come up with the lyrics for the song.
"The song’s kind of, it comes from a place of … it’s about suicide and it’s about not necessarily the act of it itself obviously, but people after it happens, the aftermath of it and people blaming themselves or starting to think, what could I have done to help that person? Or whatever," he said to Zane Lowe on Apple Music’s Beats 1 Radio.
The musician added: "When I was about five or six I think, my aunt committed suicide and just remember recently speaking to my mum about their feelings, her feelings about going through that sort of rigmarole in your head of, 'What could I have done here? Could I have done anything?' Sort of thing.
"But she said it was the thing of, at first you’re angry. You’re obviously upset and then you kind of get angry at them, and then you get angry at yourself. She said it was this whole kind of … it’s very, very strange."
If you're struggling and need to talk, the Samaritans operate a free phoneline open 24/7 on 116 123. Alternatively, email Jo@samaritans.org if you'd prefer to write down how you're feeling.
