When Kelly Rowland performed on The X Factor last weekend wearing a tiny pair of hotpants and a bra, the nation collectively gasped 'WOW' at her toned physique. However, the Down for Whatever singer ...

X-Factor started with a very familiar lineup, and here are the most powerful members of the original team's lineup.

X-Factor is one of the greatest mutant teams ever, and it's gotten there because it's collected some of the greatest heroes ...