There is a reference to the movie Predator in the song "Helicopter". After 
playing the song, go to the
"More Stats" screen, or to Practice mode and get to the screen where you 
choose what section to
play. One of the sections in the song is called "Get Back To The Choppa!!!" 
which seems to be a
reference to Arnold Schwarzenneger's line in Predator, when they are all 
running away from the
Predator.