There are lists…

And number 7 of the 10 performances that changed “American Idol” according to the Boston Globe is:

7. Jason Castro, “Hallelujah”

[…] Season 7’s dreadlocked fourth-place finisher Castro turned in a clear-eyed performance that launched Buckley’s version to the top of he Digital Song chart […] and inspired former “Idol” mastermind Simon Cowell to insert it into almost every singing competition in which he had a hand.

 

To read the full paragraph–and, if you insist, the other nine performances–click on over to The Boston Globe’s article, 10 ‘American Idol’ performances that changed the show.