Ed Sheeran and and Jess Glynne's writing sessions turned into therapy.

Jess Glynne

Jess Glynne

The British pop stars have both been affected by the spotlight and when they were working on the song 'Thursday' in the studio, which is about the pressures placed upon social media users to look a certain way, talk soon turned to coping with being in the public eye.

Jess, 28, spilled to the Daily Star newspaper: "Me and Ed chatted about the pressure of the industry, how it's changed our lives and how we deal with things.

"It was interesting talking to another artist who has had uber-success because he's experienced certain things people outside of the limelight don't understand.

"So it was good to have the perspective of somebody who gets it. It turned into a bit of therapy session - that's where the song ('Thursday') came from."

The flame-haired pair - who have also co-written Little Mix's latest single 'Woman Like Me' featuring Nicki Minaj - also tackled ginger prejudice on the song from her forthcoming LP 'Always Inbetween'.

The 'Rather Be' hitmaker said previously: "We talked about that (being redheads).

"It's weird. I don't understand why there is such a prejudice about it in this country.

"I've definitely heard all the ginger jokes. But guys get it a lot harder. I think it affected Ed more. But maybe people like Ed and me, we're changing that. I love my hair. It is what it is, right?"

Jess has admitted she has felt "insecure" about her appearance over the years.

She confessed: "In this business, you are being judged all the time.

"I'd be lying if I said I didn't feel insecure, like I wasn't good enough or pretty enough, and it wasn't enough just to have my music."

Whilst they were influenced by their own experience of being judged by their hair colour on the song, it's generally about the pressures young people face to post "perfect" photos of themselves on social media.

Jess explained: "Instagram and Facebook create so much pressure on kids. Nobody is perfect. People wake up and have scruffy hair and spots on their face, and that is all a part of life. I thought it was important for someone with a platform to say that."