28/11/2011 12:37 GMT | Updated 22/05/2015 10:12 BST

Jessie J Ditches The Catsuits For Glam Lace-Front Gown On X Factor

X Factor debut as a guest performer during last night's results show - ditching her usual preference of colour-clashing catsuits and skimpy leotards, in favour of a striking floor-sweeping gown.

Jessie J performing Who You Are on the X Factor Going glam: Jessie J showed off the results of her style makeover on ITV last night. Photo:Rex Features

The singer hit the stage to perform new single Who You Are, looking unusually elegant in the goth-glam lace-front gown - which was by relatively unknown Latvian designer, KatyaKatya Shehurina.

Jessie J joined former X Factor finalist Olly Murs in keeping the crowds entertained while the remaining five contestants awaited the verdict from this week's public vote.

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