The 'It's My Party' singer pulled out all the stops as she shimmered in a glitzy LBD whilst performing on Strictly Come Dancing this weekend (7 September).
And with fashion supremo Julien Macdonald joining this year's contestant line-up, it was hardly surprising Jessie chose a frock by the designer!
The dazzling dress, which is part of Julien's A/W '13 collection, featured a plunging mesh neckline and figure-hugging silhouette. And we're all over the cute fringed hemline, which wouldn't look out of place on the Strictly dance floor.
In true Jessie style, she added larger-than-life hoop earrings, completing her look with monochrome heeled boots.
We know who she's backing to win!
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Check out this year's Strictly stars in our gallery below: