The all-over black sequin dress had to be the winning style for X Factor contestant Sam Bailey in the series final this Sunday. The prison-guard turned diva followed in the fashionable footsteps of judges Nicole Scherzinger and Sharon Osbourne, who also opted for the wow-factor in sheer gowns with sequin embellished detailing. Sam’s floor-length gown by Little Black Dress brand Aftershock featured ultra-flattering vertical black sequin stripes and a broad waist belt to cinch her in and flatter her curvaceous hourglass figure. This dress was made in limited quantities, but if you’re interested, contact Team LBD and we might be able to sort you out with an exclusive for just £299! Singer and goddess, Miss Scherzinger saved her best dress till last and showed off her toned tummy in a plunging sheer and sequin gown from Julien Macdonald’s 2014 Spring/summer collection. Sharon was slightly more demure, wearing a rich-red Zuhair Murad gown previously worn by X- judge Cheryl Cole at the Cannes festival this year. The bold head-to-toe sequin gown has been an unavoidable calling for designers in both this season’s and next season’s collections, so to get a taste of this zealous trend take a look at some of the celeb-ready sparkling dresses below: