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This is not a drill: There are only four American Idol shows left. Like, ever. As the landmark singing competition's 15th and final (well, "farewell") season draws to a close, it's time for former Idols to take a look back at their Idol journeys.

E! News' Kristin Dos Santos got Idol alums Lauren Alaina, Nick Fradiani, Ruben Studdard, Kris Allen and David Cook to share some of their favorite-ever performances on the show—both theirs and other Idol vets.

Press play on the video at the top of the post for part one of our feature (including the song selections, their absolute favorite judge and more), and check back next week for more favorites (including their favorite Idol—besides them, of course—and the best advice the judges gave them while on the show).

Below, relive Lauren, Nick, Ruben, Kris and David's picks, because after they remind you of their greatness, you're going to want to watch them again.

American Idol Alums' Favorite Performances

Lauren Alaina: "Anyway," Martina McBride

This one was particularly emotional for Alaina because she was able to dedicate it to her hometown after it was destroyed by tornadoes.

Nick Fradiani: "Beautiful Life," his coronation single

No one can deny the emotional heft of a confetti shower raining down on you after winning a national singing competition.

Ruben Studdard: "Sweet Home Alabama," Lynyrd Skynyrd

"I just had to big up my state, make sure they knew I was representing for them," he says.

(Sorry, this one doesn't exist on the Internet anymore! Yes, you're officially old.)

Kris Allen: "Falling Slowly," from the movie Once

"I feel like it was a risk, but I think it paid off and it's just a beautiful song," he tells us.

David Cook: "Time of My Life," his coronation single

That confetti shower, man.

American Idol Alums' Favorite Performances By Other Idols

Ruben Studdard: Fantasia Barrino, "Summertime"

Nick Fradiani: Caleb Johnson, "Dream On"

Kris Allen: Joshua Ledet, "It's a Man's Man's Man's World"

David Cook: Michael Johns, "It's All Wrong But It's All Right"

Lauren Alaina: Carrie Underwood, "Inside Your Heaven"

American Idol airs Thursdays at 8 p.m. on Fox.