And now, a touching moment between the ‘Watermelon Sugar’ singer and his former teacher has gone viral. Watch below:

The former One Direction singer, 28, paused his recently packed concert at Manchester's Old Trafford so he could find his first-ever school teacher, Mrs Vernon. 

He asked the audience to be ‘very quiet’ while he looked for her, and when she made herself known, he said: “There she is! MRS VERNON!” before bowing before her. 

Harry then had a brief exchange with his old teacher before delivering a heartfelt thank you for the role she played in his formative years.

He said: “I’d just like to thank you for everything in those formative years, and erm, yeah thank you so much, it means a lot to me that you’re here tonight. Thank you.

“You were truly wonderful teachers and I thank you from the bottom of my heart for everything you did for me. Thank you. I’m gonna dedicate this next song to you.”

Reacting to the teacher’s presence at the concert, one fan wrote: “harry styles’ first teacher being there to see him perform in a big crowd, she must be so proud of him [sic].”

A second remarked: “imagine harry’s former teacher going to school tomorrow she’s so famous now. i bet she tells everyone she meets she was harry styles 1st teacher such a flex as she should tbh [sic].”

“Now i wanna be a teacher cause what if one of my students grows up to be harry styles [sic],” dreamed a third.

Harry himself grew up in Holmes Chapel, Cheshire, just outside Manchester, and described the concert as his 'home show'.

“I’d love for there to be a time where it felt like something we all wanted to do.”

“I think we all went through something really special together, and there’s a lot of love there.”

The singer continued: “Yeah, I think if there’s a moment for us to do it in the right way, I think it’d be great.”

Would you like to see a One Direction reunion?