kaled - 5:20 pm on Dec 16, 2010 (gmt 0)
Because she came through the predecessor of The X Factor - Popstars. This contrasts nicely with
why is cheryl cole famous? where are past winners?
On average the X-Factor launches one or two careers per series but the winner isn't necessarily one of them. In that regard, it's no worse than any other talent show and maybe better than some.
Of course, if you really want to become a star, getting a role in the Aussie soap Neighbours may be the way to go - it's launched many more careers than the X-Factor, but it has been going longer too.