Monotonous Music?

I used entropy over song lyrics as a proxy for repetitiveness in Billboard hits (1950-2015). Lower entropy means more repeated words; higher entropy means more lyrical variety.

Dataset source: kevinschaich/billboard. Examples from the results include low-entropy tracks like Harlem Shake and high-entropy tracks like 6 Foot 7 Foot.

Results

Most Repetitive Billboard Songs

# Song Year
1 Animals - Martin Garrix 2014
2 The Hustle - Van McCoy 1975
3 Harlem Shake - Baauer 2013
4 Pick Up The Pieces - Average White Band 1975
5 Turn Down For What - DJ Snake 2014

Most Non-Repetitive Billboard Songs

# Song Year
1 Victory - Puff Daddy 1998
2 Been Around The World - Puff Daddy 1998
3 6 Foot 7 Foot - Lil Wayne 2011
4 Holidae In - Chingy 2004
5 Lighters - Bad Meets Evil 2011

Artists With Most Repetitive Average Output

# Artist
1Wings
2Calvin Harris
3Chubby Checker
4Three Dog Night
5Dave Clark Five

Artists With Most Non-Repetitive Average Output

# Artist
1Puff Daddy
2Eminem
3Dr. Dre
4Jay-Z
5LL Cool J

Genre Ranking (Most to Least Diverse Lyrics)

# Genre
1Rap and Hip Hop
2Folk
3Blues
4Rock
5Country
6Pop
7Jazz

Higher rank here means higher average entropy (less repetition).

How Repetitiveness Changed Over Time

Entropy trend of Billboard lyrics over time