Česko Slovenská SuperStar season 4

Česko Slovenská SuperStar (English: Czech&Slovak SuperStar) is the joint Czech-Slovak version of Idol series' Pop Idol merged from Česko hledá SuperStar and Slovensko hľadá SuperStar which previous to that had three individual seasons each. The fourth season premiered in autumn 2015 with castings held in Prague, Brno, Ostrava, Žilina, Bratislava and Košice. It is broadcast on two channels: «TV Nova» (Czech Republic) and «Markíza» (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.

Regional auditions
Auditions were held in Bratislava, Košice, Prague, Ostrava, Žilina and Brno in the summer of 2015.

Veľký výber
In Veľký výber where 100 contestants. The contestants first emerged on stage in groups of 9 or 10 but performed solo unaccompanied, and those who did not impress the judges were cut after the group finished their individual performances. 40 made it to the next round held in beach. Contestants will sing in duet. Next round is Dlouhá cesta. 20 contestants made it to the Semi-final.

Semi-final
20 semifinalists will revealed in October when the show premiered on screen. Ten boys and ten girls competed for a spot in the top 8. From each semi final 4 contestant will made it to the final. Public will choose one contestant and other three will be chosen by jury.

Finals
Eight contestants made it to the finals. TOP 8 consists of 1 Slovak boy, 3 Czech boys, 3 Slovak girls and 1 Czech girl. The first single recorded by TOP 8 is cover version of Česko Slovenská SuperStar 2009 theme song "Príbeh nekončí" (The Story Doesn't End). Every final night has its theme. Audience can vote for contestants from the very beginning of the show, voting ends during result show on the same day.

Top 7 – Movies Night
TOP 7 - Girls: "A Little Party Never Killed Nobody" (Fergie) TOP 7 - Boys: "Oh, Pretty Woman" (Roy Orbison)
 * Group performance:

Contestants who appeared on other seasons/shows

 * Veronika Vrublová was an artist on the first season of The Voice, joined Team Josef Vojtek and eliminated during first Live show.
 * Alena Shirmanova, under her stage name Aiko, competed in ESCZ 2024, the Czech selection for the Eurovision Song Contest 2024, and won, going on to represent the country in the event.