Ultimate Mix-Tape of All Time

Hypothetical - you've been asked to make a mix tape, of 20 songs, that will best illustrate to people in 50 years time, what the music of the last 70 years was like. Can't have the same artist more than once, but otherwise no limits. What would you pick - bearing in mind it is to cover as many genres/styles/trends as possible?
It's a very hard one, but in no particular order:
- Strange Fruit - Billie Holliday
- I Want To Hold Your Hand - The Beatles
- Hotel California - The Eagles
- Dancing Queen - ABBA
- Born In The USA - Bruce Springsteen
- It's Too Late - Carole King
- Beat It - Michael Jackson
- Moondance - Van Morrison
- Kashmir - Led Zeppelin
- Brown Sugar - Rolling Stones
- Go Your Own Way - Fleetwood Mac
- Summertime Blues - Eddie Cochran
- Crazy Frog (yes, yes, I know - but its supposed to illustrate trends good AND bad!)
- Dancing In The Street - Martha and The Vandellas
- My Heart Will Go On - Celine Dion (see Crazy Frog)
- Nutbush City Limits - Ike and Tina Turner
- China Girl - David Bowie
- Bohemian Rhapsody - Queen
- Like A Virgin - Madonna
- Macarena - Los Del Rios
Over to the crew!
It's a very hard one, but in no particular order:
- Strange Fruit - Billie Holliday
- I Want To Hold Your Hand - The Beatles
- Hotel California - The Eagles
- Dancing Queen - ABBA
- Born In The USA - Bruce Springsteen
- It's Too Late - Carole King
- Beat It - Michael Jackson
- Moondance - Van Morrison
- Kashmir - Led Zeppelin
- Brown Sugar - Rolling Stones
- Go Your Own Way - Fleetwood Mac
- Summertime Blues - Eddie Cochran
- Crazy Frog (yes, yes, I know - but its supposed to illustrate trends good AND bad!)
- Dancing In The Street - Martha and The Vandellas
- My Heart Will Go On - Celine Dion (see Crazy Frog)
- Nutbush City Limits - Ike and Tina Turner
- China Girl - David Bowie
- Bohemian Rhapsody - Queen
- Like A Virgin - Madonna
- Macarena - Los Del Rios
Over to the crew!