![Jessie J performs during Capital FM's Summertime Ball at Wembley Stadium, London Stock Photo - Alamy Jessie J performs during Capital FM's Summertime Ball at Wembley Stadium, London Stock Photo - Alamy](https://c8.alamy.com/comp/2D7189W/jessie-j-performs-during-capital-fms-summertime-ball-at-wembley-stadium-london-2D7189W.jpg)
Jessie J performs during Capital FM's Summertime Ball at Wembley Stadium, London Stock Photo - Alamy
![Jessie J flashes her toned legs in beaded mini dress... as The Wanted's Nathan Sykes joins her for surprise duet at Summertime Ball | Daily Mail Online Jessie J flashes her toned legs in beaded mini dress... as The Wanted's Nathan Sykes joins her for surprise duet at Summertime Ball | Daily Mail Online](https://i.dailymail.co.uk/i/pix/2014/06/21/article-0-1EFF516600000578-604_634x957.jpg)
Jessie J flashes her toned legs in beaded mini dress... as The Wanted's Nathan Sykes joins her for surprise duet at Summertime Ball | Daily Mail Online
![Capital FM Summertime Ball 2014 held at Wembley Arena - Arrivals Featuring: Jessie J Where: London, United Kingdom When: 21 Jun 2014 Stock Photo - Alamy Capital FM Summertime Ball 2014 held at Wembley Arena - Arrivals Featuring: Jessie J Where: London, United Kingdom When: 21 Jun 2014 Stock Photo - Alamy](https://c8.alamy.com/comp/ED2KG9/capital-fm-summertime-ball-2014-held-at-wembley-arena-arrivals-featuring-ED2KG9.jpg)
Capital FM Summertime Ball 2014 held at Wembley Arena - Arrivals Featuring: Jessie J Where: London, United Kingdom When: 21 Jun 2014 Stock Photo - Alamy
![Capital FM Summertime Ball 2014 held at Wembley Arena - Arrivals Featuring: Jessie J Where: London, Stock Photo, Picture And Rights Managed Image. Pic. WEN-WENN21476974 | agefotostock Capital FM Summertime Ball 2014 held at Wembley Arena - Arrivals Featuring: Jessie J Where: London, Stock Photo, Picture And Rights Managed Image. Pic. WEN-WENN21476974 | agefotostock](https://previews.agefotostock.com/previewimage/medibigoff/b2348b0e9729853544f289b534558150/wen-wenn21476974.jpg)
Capital FM Summertime Ball 2014 held at Wembley Arena - Arrivals Featuring: Jessie J Where: London, Stock Photo, Picture And Rights Managed Image. Pic. WEN-WENN21476974 | agefotostock
![Jessie J performs during Capital FM's Summertime Ball at Wembley Stadium, London Stock Photo - Alamy Jessie J performs during Capital FM's Summertime Ball at Wembley Stadium, London Stock Photo - Alamy](https://c8.alamy.com/comp/2D718A6/jessie-j-performs-during-capital-fms-summertime-ball-at-wembley-stadium-london-2D718A6.jpg)
Jessie J performs during Capital FM's Summertime Ball at Wembley Stadium, London Stock Photo - Alamy
![Jessie J performs during Capital FM's Summertime Ball at Wembley Stadium, London Stock Photo - Alamy Jessie J performs during Capital FM's Summertime Ball at Wembley Stadium, London Stock Photo - Alamy](https://c8.alamy.com/comp/2D717PM/jessie-j-performs-during-capital-fms-summertime-ball-at-wembley-stadium-london-2D717PM.jpg)
Jessie J performs during Capital FM's Summertime Ball at Wembley Stadium, London Stock Photo - Alamy
![Jessie J flashes her toned legs in beaded mini dress... as The Wanted's Nathan Sykes joins her for surprise duet at Summertime Ball | Daily Mail Online Jessie J flashes her toned legs in beaded mini dress... as The Wanted's Nathan Sykes joins her for surprise duet at Summertime Ball | Daily Mail Online](https://i.dailymail.co.uk/i/pix/2014/06/21/article-0-1EFF360D00000578-182_634x906.jpg)