Wireless 2015: Jessie J Storms Musical Festival Stage, Despite Doctors' Orders Following Mystery Surgery (PICS)

Jessie J Wows At Wireless, Despite Doctors' Orders

Jessie J delighted fans when she stormed the stage at Wireless festival this weekend, despite the advice of doctors, who told her to not to perform.

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Last month, the ‘Do It Like A Dude’ singer’s loyal fans grew concerned, when she uploaded a video to her Instagram page, after undergoing an unspecified operation.

Days later, she updated fans on her well-being, revealing she’d had a second surgery, though she was insistent that it wasn’t anything to do with her voice, or her previous heart condition.

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Jessie J gives a typically muted performance

However, despite doctors' advice, Jessie - who recently cancelled a string of tour dates - managed to pull it together and perform a full set at Wireless this weekend.

Hitting the London festival stage in a skimpy black outfit, topped with a long, white coat, Jessie appeared to be the picture of health, as she performed her hits, including chart-toppers, ‘Bang Bang’, ‘Price Tag’ and ‘Domino’.

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Jessie J

Judging from these snaps, there was no indication that as little as a week ago, Jessie was live-tweeting from her hospital bed, telling fans: “I am not ok... I am in a lot of pain.

“Being human sucks when you are non-stop and your body says NOPE not right now."

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Look at her go

“Unexpected but I'm here trying my best to not let it win," she added last week.

We’re glad to see she managed to not let it stand in the way of her performance… which is more than can be said for other artists on the Wireless line-up.

Nicki Minaj, for example, completely missed her slot due to “travel issues”, eventually arriving two and a half hours late, and cutting headliner David Guetta’s set short, so she could perform her tracks, ‘Anaconda’, ‘Feeling Myself’ and ‘Super Bass’.

Check out more all the pics from Wireless below...

Wireless 2015
Britain Wireless Festival Day 3(01 of22)
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Mary J Blige performs on the main stage at Wireless festival in Finsbury Park, London, Saturday, July 4, 2015. (Photo by Joel Ryan/Invision/AP) (credit:Joel Ryan/Invision/AP)
Britain Wireless Festival Day 3(02 of22)
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U.S rapper Kendrick Lamar performs on the main stage at Wireless festival in Finsbury Park, London, Saturday, July 4, 2015. (Photo by Joel Ryan/Invision/AP) (credit:Joel Ryan/Invision/AP)
Britain Wireless Festival Day 3(03 of22)
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Tinashe performs on the main stage at Wireless festival in Finsbury Park, London, Saturday, July 4, 2015. (Photo by Joel Ryan/Invision/AP) (credit:Joel Ryan/Invision/AP)
Britain Wireless Festival Day 3(04 of22)
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Kendrick Lamar performs on the main stage at Wireless festival in Finsbury Park, London, Saturday, July 4, 2015. (Photo by Joel Ryan/Invision/AP) (credit:Joel Ryan/Invision/AP)
Britain Wireless Festival Day 3(05 of22)
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British model Jourdan Dunn, centre, chats with friends as she walks backstage at Wireless festival in Finsbury Park, London, Saturday, July 4, 2015. (Photo by Joel Ryan/Invision/AP) (credit:Joel Ryan/Invision/AP)
Britain Wireless Festival Day 3(06 of22)
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British singer and actor Jacob Anderson, also known by his stage name Raleigh Ritchie, performs on the main stage at Wireless festival in Finsbury Park, London, Saturday, July 4, 2015. (Photo by Joel Ryan/Invision/AP) (credit:Joel Ryan/Invision/AP)
Britain Wireless Festival Day 3(07 of22)
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British singer and actor Jacob Anderson, also known by his stage name Raleigh Ritchie, performs on the main stage at Wireless festival in Finsbury Park, London, Saturday, July 4, 2015. (Photo by Joel Ryan/Invision/AP) (credit:Joel Ryan/Invision/AP)
Britain Wireless Festival Day 2(08 of22)
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Canadian singer, Aubrey Drake Graham who is better known by the name Drake, performs on the main stage at Wireless festival in Finsbury Park, London, Friday, July 3, 2015. (Photo by Joel Ryan/Invision/AP) (credit:ASSOCIATED PRESS)
Britain Wireless Festival Day 2(09 of22)
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Canadian singer, Aubrey Drake Graham who is better known by the name Drake, performs on the main stage at Wireless festival in Finsbury Park, London, Friday, July 3, 2015. (Photo by Joel Ryan/Invision/AP) (credit:ASSOCIATED PRESS)
Britain Wireless Festival Day 2(10 of22)
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Brooklyn Beckham watches Canadian singer Drake, perform on the main stage at Wireless festival in Finsbury Park, London, Friday, July 3, 2015. (Photo by Joel Ryan/Invision/AP) (credit:ASSOCIATED PRESS)
New Look Wireless Festival 2015 - Day 2(11 of22)
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LONDON, ENGLAND - JULY 04: Etta Bond performs on Day 2 of the New Look Wireless Festival at Finsbury Park on July 3, 2015 in London, England. (Photo by Joseph Okpako/Redferns via Getty Images) (credit:Joseph Okpako via Getty Images)
New Look Wireless Festival 2015 - Day 2(12 of22)
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LONDON, ENGLAND - JULY 04: Marvin Humes performs on Day 2 of the New Look Wireless Festival at Finsbury Park on July 3, 2015 in London, England. (Photo by Joseph Okpako/Redferns via Getty Images) (credit:Joseph Okpako via Getty Images)
New Look Wireless Festival 2015 - Day 2(13 of22)
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LONDON, ENGLAND - JULY 04: Oritsé Williams performs on Day 2 of the New Look Wireless Festival at Finsbury Park on July 3, 2015 in London, England. (Photo by Joseph Okpako/Redferns via Getty Images) (credit:Joseph Okpako via Getty Images)
New Look Wireless Festival 2015 - Day 2(14 of22)
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LONDON, ENGLAND - JULY 04: Oritsé Williams performs on Day 2 of the New Look Wireless Festival at Finsbury Park on July 3, 2015 in London, England. (Photo by Joseph Okpako/Redferns via Getty Images) (credit:Joseph Okpako via Getty Images)
New Look Wireless Festival 2015 - Day 2(15 of22)
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LONDON, ENGLAND - JULY 04: MNEK attends Day 2 of the New Look Wireless Festival at Finsbury Park on July 3, 2015 in London, England. (Photo by Joseph Okpako/Redferns via Getty Images) (credit:Joseph Okpako via Getty Images)
New Look Wireless Festival 2015 - Day 2(16 of22)
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LONDON, ENGLAND - JULY 04: Matt Robson-Scott of Gorgon City performs on Day 2 of the New Look Wireless Festival at Finsbury Park on July 3, 2015 in London, England. (Photo by Joseph Okpako/Redferns via Getty Images) (credit:Joseph Okpako via Getty Images)
New Look Wireless Festival 2015 - Day 2(17 of22)
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LONDON, ENGLAND - JULY 04: Oritsé Williams attends Day 2 of the New Look Wireless Festival at Finsbury Park on July 3, 2015 in London, England. (Photo by Joseph Okpako/Redferns via Getty Images) (credit:Joseph Okpako via Getty Images)
New Look Wireless Festival 2015 - Day 2(18 of22)
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LONDON, ENGLAND - JULY 04: Indiana performs on Day 2 of the New Look Wireless Festival at Finsbury Park on July 3, 2015 in London, England. (Photo by Joseph Okpako/Redferns via Getty Images) (credit:Joseph Okpako via Getty Images)
Wireless Festival - London(19 of22)
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A$AP Rocky performing at the Wireless Festivall in Finsbury Park, central London. (credit:Ian West/PA Wire)
Britain Wireless Festival(20 of22)
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Singer Lily Allen, center, poses for a selfie with fans backstage at Wireless festival in Finsbury Park, London, Friday, July 3, 2015. (Photo by Joel Ryan/Invision/AP) (credit:Joel Ryan/AP)
Britain Wireless Festival Day 2(21 of22)
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Rakim Mayers, better known by his stage name ASAP Rocky, performs on the main stage at Wireless festival in Finsbury Park, London, Friday, July 3, 2015. (Photo by Joel Ryan/Invision/AP) (credit:Joel Ryan/AP)
Wireless Festival - London(22 of22)
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Lily Allen at the Wireless Festivall in Finsbury Park, central London. (credit:Ian West/PA Wire)