The former Voice UK judge looked adorable in the photo, which showed her younger self beaming at the camera while wearing a straw hat and pink frilly dress.
Sharing the snap with fans on Instagram, 'Price Tag' singer Jessie said: "I was rocking that east London look way back!"
Sporting a fringe and shoulder-length wavy blonde hair, a young Jessie looked just as fashionable as she is now!
Now at 25 years old, Jessie is continuing to focus on her music career after quitting her role as a coach on The Voice after two series.
But 2013 was a remarkable year for the popstar, who launched her second album Alive, went on a UK arena tour, and confirmed that she would be on the road with Robin Thicke for the North American leg of his tour in February!
The future continues to look bright for the singer too, after she revealed plans last year to quit the UK in a bid for US stardom!
Watch Jessie's music video for 'It's My Party' below:
Check out more celebrity childhood photos below: