Alesha Dixon sparkles in sexy purple sequin dress with plunging neckline at Chain of Hope charity gala in London

PUBLISHED: 23:28, 21 November 2014 | UPDATED: 01:27, 22 November 2014

She often keeps it under-wraps but on Saturday night Alesha Dixon showed off her smoking hot body.

The Britain's Got Talent judge was out for the Chain of Hope Gala Ball in London showing she's still got bags of style and a figure to match.

The 36-year-old isn't seen out on the red carpet as much as she once was but certainly cleaned up well for the charity event.

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Sparkling star: Alesha Dixon showed off her style and her figure in a sexy sequinned dress at the Chain of Hope Gala

The mother-of-one was wearing a striking purple sequinned dress with a subtle yet plunging neckline.

The strapless number had a split down the centre of the bustier with just a thin layer of nude mesh between it.

The cocktail dress was cinched in at the waist with a sophisticated straight pencil-style skirt.

Smoking hot! She went for a strong smoky eye, keeping the rest of her look natural

The modest hemline perfectly offset the flirtatious bust.

She teamed the look with nude platform heels and no jewellery, letting her dress do all the sparkling.

Her make up with simple with strong eye-liner and serious lashes dominating an otherwise natural face.

Chain of Hope: The charity aims to enable sick children access to top cardiac care, wherever they may live

The Britain's Got Talent judge wore her hair down with a loose curl, showing off her ombre style dye job.

The Chain of Hope charity work to help bring life-saving operations to sick children across the world.

For her most recent public appearances before this Alesha had chosen a number of more shapeless outfits.

Red hot! Alesha went for a less figure-skimming outfit for the CDN Awards

Last week she was at the Creative Diversity Network awards where here look was quite different.

Wearing a scarlet red, pussy-bow dress she kept her figure under-wraps and let her make-up do the work.

Prior to that she also chose a striking by loose-fitting dress for the EMAs in Glasgow.

Her Mart Katrantzou dress certainly stood out from the crowd.

Print party: The queen of prints Mary Katrantzou made Alesha's EMAs shirt dress

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