David Cook performs "Music of the Night" by Andrew Lloyd Webber on American Idol Top 6, "Andrew Lloyd Webber Week".
Randy: "I've said it before, if you can really sing you can sing anything. Dude, that was an amazing vocal performance."
Paula: "This song proved you are so well rounded. I thought it was fantastic."
Simon: "This is not the side of you I like at all. I prefer the grittier rock but you made the most of what you were given."