Contestants were required to sing a cappella with poor singers often facing intense and humbling criticism from the judges. Typically the judges express disgust or dismay or suppressed laughter. Those who impress the majority of the judges, move on to the elimination round which take place in Jakarta. Usually only 150 to 170 contestants get through to the elimination round in Jakarta. Contestants had to be Indonesian citizens . For the first season, contestants were required to be between the ages 18 to 24 years old. To increase variety, in the second and third season the age requirement was lowered from 18 to 16 and the upper age limit was raised from 24 to 28. As a result, there were many teenagers that made it to the final 12 such as Monita and Vira from the second season and also Tesa, Brinet, Christy, Ihsan, Gea and Dirly from the third season. For the fifth season, the eligible age-range for contestants were 17 to 29. There were 3 elimination rounds. In the first elimination round, 170 contestants from around Indonesia were separated in 17 groups of 10 contestants. In the 2nd elimination round, male and female contestants were paired and sang duets. In the last elimination round the remaining contestants sang their choice of song alone in front of the judges. The judges then inform them whether they have made it onto the stage show or not. In the first season, 30 contestants were separated in groups of 10 and every week three contestants from each group were chosen to the Top 10 or The Spectacular Show. Audiences vote their favorites by SMS and Premium Calls. After 9 contestants were chosen, there was a wild card round. Only one contestant from the Wild Card round could join the 9 contestants at the Spectacular Show. Karen Theresia Pooroe won the most audience votes, advancing to the Top 10. Although the spectacular show was supposed to have a set of 10 contestants, the judges announced at the last minute that they would be advancing a second wild card/eleventh contestant, Lucky Octavian, as well. In the second season, there was no Wild Card round. 24 contestants were separated into groups of 8. Every week, 4 contestants were picked to move on to the Top 12. For the third season, the workshop stage consisted of three rounds each for male and female contestants. There were 28 contestants that made it to the workshop stage on the third season. In the first week, eight contestants (four males and four females) were sent home. Six contestants (three males and three females) were sent home in the second week, and the final workshop eliminated four more contestants (two males and two females).