I was listening to Peter Gabriel's song "Big Time" from his multi-platinum album "So" (quite excellent album, fwiw). In it, he sings the lyric:

the place where I come from is a small town
they think so small
they use small words
-but not me
I'm smarter than that

I'm a geek, so "but not me, I'm smarter than that" sounded like a challenge. So I decided to test Peter Gabriel's vocabulary.[1] Please, judge for yourself:

Longest word: circumstance
Word with most syllables: adventure

 Distribution of words by word length:
1: 15
2: 70
3: 87
4: 77
5: 32
6: 21
7: 12
8: 1
9: 1
10: 1
12: 1
Mean word length: 3.56

 Distribution of words by number of syllables:
1: 281
2: 35
3: 2
Mean number of syllables per word: 1.12

 Flesch-Kincaid Grade Level:
(.39 * ~7 words/sentence [I'm being generous]) + (11.8 * 1.12 syllables/word) - 15.59 = .356, or understandable to children not yet in first grade.

1. nb:, the song itself may be ironic and is undeniably campy, but is undeniably autobiographical as well.