X Factor was a Dutch television music talent show contested by aspiring pop singers drawn from public auditions. It was shown Friday evenings on the RTL4 Network in the Netherlands. The first series of the show aired from October 2006 through to February 2007, while the second series of the show aired from January through to May 2009. The show is produced by Blue Circle and is currently sponsored by Fiat. The "X Factor" of the title refers to the undefinable "something" that makes for star quality.