Some little tidbits...

• Some of the loading screens before songs are jokes and remarks specific to that track; for example, before encores, it says to never to "just jam" when the audience wants an encore (Like in the movie This Is Spinal Tap), while prior to "Jordan", the player is told that wearing a bucket on one's head won't improve one's performance, a direct reference to the song's composer, Buckethead.
  
  
• The drummer spontaneously combusting at the end of "Tonight I'm Gonna Rock You Tonight" is another reference to the movie This Is Spinal Tap, where the song originates.
  
  
• The scrolling words on the walls of the school venue show various lyrics to Alice Cooper's "School's Out".
  
  
• The chalk board in the loading screen has a picture of a cherry next to the Greek letter pi, a reference to the featured song by Warrant.
  
  
• Before playing "Free Bird", the loading screen could say, "FINE. They're not just heckling you this time. Sigh", a reference to a loading screen in the original Guitar Hero that said, "They don't really want you to play 'Freebird,' they're just heckling you.", itself a reference to a common musician joke.
  
  
• As a tribute to using their track in the game, the Metalocalypse episode, "Dethkids", featured a dying young girl in a wheelchair playing with a Guitar Hero controller.
  
  
• The loading screen "Throw your undies on the stage, no wait you're underage." displayed whenever playing "Less Talk More Rokk" by Freezepop, is a reference to the song "Super Spr¿de", which is a bonus track by Freezepop in the Harmonix PlayStation 2 rhythm game Amplitude.
  
  
• Clive Winston will use a violin bow to strum his guitar when star power is activated with him. This is a tribute to several famous guitarists, most noteably Jimmy Page, who would often do the same thing during shows. Pandora also does this action sometimes when her star power is activated.
  
  
• Xavier Stone will sometimes pluck his guitar with his teeth when using star power, a tribute to Jimi Hendrix.
  
  
• Many bonus songs are by bands whose members work at the game's developer, Harmonix, including (but not limited to) Megasus, Breaking Wheel, Acro-brats, Anarchy Club, The Amazing Royal Crowns, Honest Bob and the Factory-to-Dealer Incentives, That Handsome Devil, Freezepop and Made In Mexico.