The album begins with the conjunction "because".
The fast food hamburger chain White Castle is mentioned in the songs "The New Style", "Slow Ride", "Girls", "Hold It Now, Hit It", and "Slow and Low".
Ad-Rock says that he's from Manhattan three (3) times.
Mike D can do The Smurf, The Popeye, and The Jerry Lewis; Ad-Rock can do The Smurf. (Alternatively, Jenny Lewis cannot do The Smurf, but she can do The Frug, The Robocop, and The Freddie, as mentioned in the Rilo Kiley song "The Frug".)
"Ad-Rock" is shouted fifteen (15) times, twelve (12) of which are shouted by Ad-Rock. "MCA" is shouted twenty-three (23) times, eleven (11) of which are shouted by MCA (his full name "Adam Yauch" is shouted two (2) times). "Mike D" is shouted thirty (30) times, sixteen (16) of which are shouted by Mike D.
Mike D killed two kids in "Paul Revere".