Tonight the Top 4 finalists will perform live for the nation, vying for the American Idol crown. The contestants will sing their hearts out in hopes of winning America’s vote and surviving another week in the competition. This week's theme: Elvis Presley songs. Performing tonight: Katharine McPhee, Chris Daughtry, Elliott Yamin, and Taylor Hicks.
| Name | Type | Role | |
|---|---|---|---|
| Nikko Smith | Guest Star | ||
| Jeri Ryan | Guest Star | ||
| Amaury Nolasco | Guest Star |