The Klein Four are an a cappella group that produces comedic songs about and involving mathematics. The group consists of five members (the original four, plus some other random guy), all of whom are graduate students attending Northwestern University. They have currently recorded one album, Musical Fruitcake, and are working on an album supposedly entitled Elements that will be released at a later date.
|1||Finite Simple Group (of Order Two)||1,053 listeners|
|2||Three-Body Problem||194 listeners|
|3||Just the Four of Us||190 listeners|
|4||Power of One||188 listeners|
|7||Mathematics Paradise||158 listeners|
|8||XX Potential||158 listeners|
|9||Confuse Me||147 listeners|