Groups were reviewed and contestants were then judged individually as to whether they were moving on or going home.The third round took place on the fourth day, and consisted of individual contestants performing a song from a pre-selected list, accompanied by a piano and backup singers.This extended over the first two days, first females, then males.The second round took place on the second and third day, and consisted of groups of three or four contestants choosing, rehearsing, and then performing one of nine pre-selected songs.The sixth season of American Idol premiered on the Fox Broadcasting Company as a two-night, four-hour premiere special on January 16 and January 17, and ran until May 23, 2007.
Contestants were then told whether they were moving on or going home, in groups of six.
The 24 semi-finalists were announced February 14, 2007. There were three shows each week for the three weeks of the semi-finals.
The February 20 through May 16 shows originated from CBS Television City in Hollywood.
Jordin Sparks is also the youngest winner of the competition, winning at age 17, as well as the first winner from outside the Southern United States.
Sparks remained the last female winner until the twelfth season.Then the three judges told them whether they have made it onto the stage show or are cut.