SuperStar (previously known as
Cesko Slovenská SuperStar) is a joint
Czech and
Slovak version of the
Idol series'
Pop Idol. It was merged from
Cesko hledá SuperStar and
Slovensko hladá SuperStar, which previously had three individual seasons each. The first season premiered in September 2009 with castings held in
Prague,
Brno,
Bratislava and
Košice. It is broadcast on
TV Nova in the Czech Republic and on
Markíza in Slovakia which have also been the broadcast stations for the individual seasons. Also both hosts have been their hosts countries before as have been three out of the four judges. 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.