Cheryl Cole looks red hot as Dannii hits all the right notes in Victoria Beckham

On Sunday, both ladies went for all-back ensembles - new red-head Cheryl choosing a satin mini dress with a peephole neckline, while her Aussie co-judge went for a figure-hugging Antonio Beradi affair 

For Saturday's live show, the 27-year-old beauty kept it simple with a black Azzaro jumpsuit and Miu Miu heels 

While Dannii dressed to impress in a Victoria Beckham design 

The pop-star-turned-designer wore the same asymmetrical column dress to the Academy Awards in March