Channel 4 Celebrity Gogglebox stars divided by Shania Twain's 'concerning' Glastonbury performance

However, her performance left viewers and festival-goers "concerned" and many asked if she was "OK".

It came as her voice seemed unable to keep up with the music and left some wondering if she was facing difficulties on stage.

Despite performing all her most popular tracks, including You're Still the One and That Don't Impress Me Much, the singer appeared to struggle to keep up with many of the lyrics.

However, the crowd remained keen to sing along, with the audience erupting into applause after each song.

Big fans of Shania #thatimpressedmemuch@officialswr @bez_Beerspotter#Glastonbury #CelebrityGogglebox pic.twitter.com/CFEiaFdUmc

— C4 Gogglebox (@C4Gogglebox) July 5, 2024

Some suggested she could have been facing tech issues, and the concerns come just a day after 1980s legend Cyndi Lauper faced similar criticisms.

On Friday, the Celebrity Gogglebox stars also picked up on the issue, but some applauded the 58-year-old.

While the famous faces sung along to the singer's iconic hit, Man! I Feel Like A Woman, some noticed her vocals sounded a bit off.

Rylan Clark and his mother Linda were among them, with Linda commenting: "Her voice doesn't sound too good, does it?"

Scottish singer and television personality Lulu told Gyles Brandreth about how Twain had suffered an illness which has affected her singing voice.

Rylan also explained Twain's Lyme Disease ordeal to his mother, while Fearne Cotton told Gok Wan: "I hope I'm like that at 58". Former Happy Mondays star Shaun Ryder remarked: "She's great, Shania!"

Ahead of her Glastonbury set, the country-pop sensation discussed the harrowing details of how her voice was altered by an illness during her Netflix documentary, Not Just a Girl.

She explained: "My symptoms were quite scary because before I was diagnosed, I was on stage very dizzy.

"I was losing my balance, I was afraid I was gonna fall off the stage... I was having these very, very, very millisecond blackouts, but regularly, every minute or every 30 seconds," she continued, expressing the fear that gripped her: "My voice was never the same again. I thought I'd lost my voice forever. I thought that was it, [and] I would never, ever sing again."

LATEST DEVELOPMENTS:

• Strictly Come Dancing star makes feelings clear about BBC and admits broadcaster is 'Not forgiven' after axe
• Clarkson's Farm's Gerald Cooper shares 'important announcement' as he drops career news amid cancer all-clear
• The Repair Shop's Jay Blades emotional and speechless over guest reaction to fix: 'Taking me back'

Last year, the singer gave an update on her recovery and spoke about how grateful she felt to be able to return to singing and songwriting after the traumatic experience.

"It was quite depressing and devastating to imagine that [not being able to sing again. Even speaking has been difficult with the Lyme disease. Now I'm just feeling so grateful that I can sing and express myself.

"And this now is my first album since the operation on my voice. You have to be awake while they do it. I was more afraid of never singing again than getting through the operation.

"The reason you have to be awake for the operation is that you have to sing during it so they know exactly what to do," she told ITV's Lorraine Kelly.