- "Baby, you're a rich man; baby, you're a rich man..." Especially notable since it is almost unheard of for Apple Records to allow an original Beatles recording to appear in a non-Beatles film (barring of course a few other exceptions).
- Trent Reznor and Atticus Ross's Oscar-winning score, especially "Intriguing Possibilities" and Mark's Leitmotif "Hand Covers Bruise." And then there's that chilling industrial cover of Grieg's "In the Hall of the Mountain King."
- "14 Ghosts II" from Ghosts I-IV playing during the interview with Sean Parker.
- Scala's haunting cover of Radiohead's "Creep" that plays during one of the trailers. It's heartbreaking.
Awesome Music / The Social Network