It’s turned out stars from Stacey Solomon to Little Mix, with plenty of drama along the way.
The X Factor started in 2004 and at one point was one of the most popular TV shows in the UK, but how much of it do you actually remember?
Can you recall all the people who won? What about the ones who became one-hit wonders and faded into obscurity?
And do you know all the famous acts that have found the limelight despite not winning the show itself?
Test your X Factor knowledge with our latest Yahoo quiz and see how many of these 15 multiple-choice questions you can get right.
* Can’t get enough trivia action? Check out our dedicated Yahoo Quizzes page for more brainteasers! *