The X Factor – Wikipedia

The X Factor is a television music competition franchise created by British producer Simon Cowell and his company SYCOtv.It originated in the United Kingdom, where it was devised as a replacement for Pop Idol (2001–2003), and has been adapted in various countries. The “X Factor” of the title refers to the undefinable “something” that makes for star quality.

https://en.wikipedia.org/wiki/X_Factor