Naill Horan from One Direction.
Micheal Buble.
Yes usually.
He was on the X Factor on the 2009 final.
Leona Lewis preformed with take that on the final night of the x factor
Cher Lloyd sang with will.i.am on The X Factor final 2010.
Stacey
G4 were the first group to reach an X Factor final in series 1.
The X Factor Final 2009 finished ages ago I'm afraid as it is now 2010.
Alexandra Won the X-Factor last night.
You can audition from the age of 12.
Steve Brookstein was in the final with G4.
12th December.