Did you see the Princess of Babylon linkkari77 posted above? It's the complete QAF song list, organized by episode, and a huge help when you're grasping to remember what song you heard where!
All of these are such great choices! I love this: Then, who could forget "Straight to number one"? Whenever I hear it, I think of the reverence and adoration on young Justin's face. - yes, "reverence" is the perfect word here. (But then whose bad idea was it to re-use this song a few episodes later for Michael and Dr. Dave?? Yikes!)