The first season premiered in September 2009 with castings held in Prague, Brno, Bratislava and Košice.

To legitimate a fair chance for each country's contestants to reach the final, twelve of the contestants will compete split into genders and nationalities in the semifinals, guaranteeing a 50% share for each country in the top 12.

Auditions were held in Bratislava, Košice, Prague, Brno in the spring of 2009.

In three Semifinals the guys performed on Saturday and the girls on Sunday night.

The first single recorded by TOP 12 is called "Příběh Nekončí / Príbeh Nekončí" (The Story Doesn't End) and it was composed by judge Pavol Habera (music) and Slovak poet Daniel Hevier.