Jessie J stunned commuters with an impromptu performance outside King’s Cross station on Monday evening. 

The British pop star, 37, joined DJ AG behind his usual setup of decks outside the busy train station for one of his well-known London street performances. 

And Jessie sent fans wild, performing her hit 2011 song Price Tag with fans singing along and filming as cars whizzed by in the background. 

For the surprise appearance, Jessie initially wore a camo jacket with a pair of stylish sunglᴀsses, before taking the coat off to reveal a plain black vest to match her shiny, straight black hair.  

The London-born singer also performed hits such as Flashlight and her 2014 collaboration with American superstars Ariana Grande and Nicki Minaj, Bang Bang. 

Jessie J stunned commuters with an impromptu performance outside King’s Cross station on Monday evening

The British pop star, 37, joined DJ AG behind his usual setup of decks outside the busy train station for one of his well-known London street performances

Jessie sent fans wild, performing her hit 2011 song Price Tag with fans singing along and filming as cars whizzed by in the background

Fans who missed the surprise show were quick to praise Jessie’s ‘insane’ performance under DJ AG’s video of it on TikTok. 

‘Her vocals are that good that she doesn’t even need to sing seriously,’ commented one. 

Another quipped: ‘Jessie J is so underrated. What a VOCALIST. She deserves all her flowers.’

Other viewers, however, couldn’t quite believe they’d missed the gig. 

‘Of course it’s when I’m not in London that Jessie rocks up, to get to see her would be everything,’ a frustrated fan commented. 

‘Ahhh I’m so vexed I missed this,’ wrote one another. 

The surprise performance came on the same day it was announced that Jessie will be part of a star-studded lineup set to perform at the Capital Summertime Ball with Barclaycard this year. 

The performance came on the same day it was announced that Jessie will be performing at the Capital Summertime Ball with Barclaycard 2025. Pictured 24 April 2025

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The British singer will be joined by a host of superstars at the event, including Mariah Carey – the evening’s headliner

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At the event at Wembley Stadium on Sunday June 15, the Brit pop singer will be joined by the likes of Lola Young, Busted vs McFly, KSI and Mariah Carey – who is the headliner. 

Jessie will be expected to perform her biggest hits such as Price Tag, but also her comeback single, which released last Friday, No Secrets. 

The song sees the singer remember her miscarriage in 2021, which she says left her devastated and preceded the loneliest days of her life. 

In an interview with ELLE magazine, Jessie said:’ When I found out the baby had no heartbeat – I’m sure I can speak for all women, even if they have people around them – it’s such a lonely feeling. I’ve never felt more alone.

‘For those six days, when I knew the baby had gone but it was still inside me… it was the saddest, loneliest time. It’s letting go of something you’ve dreamt of that now isn’t going to happen.’

While her performance on Monday must have come as a surprise to commuters, Jessie J is far from the first artist to appear at King’s Cross.

Stars such as Craig David, Alicia Keys, and rappers Skepta and JME have all delighted commuters with impromptu gigs in the last year. 

And earlier this month, Ed Sheeran surprised Londoners with a lunchtime performance in the sunshine to celebrate the release of his new single. 

The Ipswich-born singer performed a host of hit songs including Shape of You, Perfect and Bad Habits. 

Ed played his acoustic guitar and belted out hit songs including Shape Of You, Perfect and Bad Habits