Seeing double on X Factor? Twins John and Edward took the stage on 'X-Factor' to perform Britney Spears' 'Oops, I Did It Again' for the judges (including 'American Idol' star Simon Cowell) dressed identically in red leather suits with black shirts and black ties and the same spiky, gelled hair-do.

So what did everyone think of their performance? Watch It and Find Out