It's Just that "thing" that makes an individual stand out. Captures your full attention. Side Effect- People are dumbfounded when in the presence of the X-factor.

Music so good it could elicit sexual arousal.

an indescribable quality or something; something about a person that you cannot put your finger on; je ne sais quoi

1. An unknown variable

Really lame pop-music Reality TV show much like pop-idol.

Noun.
A) A quality that makes people in possession of it the epitome of cool. When trying to explain why this person is so cool you come up blank. Everyone knows this person and people like being around them.
B) Used to describe someone whos not necessarily hot but you are strangely attracted to.

Is a fix. the winners are chosen before the series starts and they intentionally let some shite ones through to the 4th round so we can all laugh at them on telly.

And no, I've never applied for it.