14/08/2014 12:36 BST | Updated 22/05/2015 06:12 BST

Gemma Arterton Wows In Louis Vuitton Negligee Dress For Unicef Halloween Ball

The negligee trend is one of this season's sexiest and last night, Gemma Arterton showed us why.

The Brit beauty wore a gunmetal Louis Vuitton slip dress for the UNICEF Halloween Ball in London. Think less scary more smouldering, think spaghetti straps, floral and lace detailing, shimmery silver eye makeup and a sleek updo. Shazzam!

Gemma sauntered along the red carpet at One Mayfair looking totally fabulous. Who said you had to go all out ghoulish or grannyish a la Heidi Klum to celebrate Halloween in style?

Need to see some OTT Halloween wares? You SO want to set eyes on this celebrity gallery of fancy dress costumes...