On this week's performance show, the contestants sung songs from the year they were born.

At least we think that was the theme. We're still so shaken up from Adam Lambert's amazing rendition of "Mad World" by Tears for Fear that it all feels like a blur. This may easily be the greastest finalist in show history.

Here's a rundown of who sang what this week, as Lambert received the most praise from judges; followed by Danny Gokey, Matt Giraud and Allison Iraheta.

- Adam Lambert: Mad World

- Matt Giraud: Part-Time Lover

- Allison Iraheta: I Can't Make You Love Me

- Scott MacIntyre: The Search is Over

- Anoop Desai: True Colors

- Lil Rounds: What's Love Got To Do With It

- Kris Allen: All She Wants To Do Is Dance

- Danny Gokey: Stand By Me