Names in
Bold indicate the winning singer, while
Italics indicate the runner-up singer. Singers are listed based on their original season appearances, returning singers (who participated in seasons 5 or 8) are not repeated.
Singers participated in groups are listed in parentheses. Initial singers first listed in order of official announcement, followed by Substitute/Challenge Singers in order of appearance.
∆ Substitute Singer ∇ Challenger/National's Recommended Singer/Surprise Challenger ƒ Finalist singer н Hosting singer
† Withdrew (but have performed Return Performance) ‡ Withdrew § Non-contestant (Eliminated without ever performing Breakouts)