Classic Love Songs:
John Denver was #1 with this one:
http://www.youtube.com/watch?v=RNOTF-znQyw
...and The Hollies peaked at #6 with this:
http://www.youtube.com/watch?v=7duPNQCp-w4
Songs Directly Inspired By Nixon:
Debuting at #93 on its way to #1, Stevie Wonder's "You Haven't Done Nothin' ":
http://www.youtube.com/watch?v=CbRRGdFgWMY
Songs That Aren't About Nixon But Their Location on the Charts That Week is Humorous in Retrospect:
#2 - "Don't Let the Sun Go Down On Me" by Elton John (who also had the #1 album that week with Caribou):
http://www.youtube.com/watch?v=ncuiQAfPhTg
#11 - "Waterloo" by ABBA:
http://www.youtube.com/watch?v=BoeAqeKW5Wk
Just cracking the Top 40 at #39 on its way to #1, Billy Preston's "Nothing From Nothing":
http://www.youtube.com/watch?v=0MluxWirpKc
Woodward & Bernstein's Theme, Because I Can Just Imagine Them Boogieing Around the Post Offices To This on the Night of Aug. 8:
#16 - BTO's "Takin' Care of Business":
http://www.youtube.com/watch?v=hbEt_h6qnY8
Period Pieces:
Peaking at #40, Curtis Mayfield's "Kung Fu":
http://www.youtube.com/watch?v=AOgdRVm-zzw
Debuting at #95, Wombles' "Wombling Summer Party."
(Evidently the Wombles were some sort of British costumed kids' show, a UK Banana Splits who picked up litter. Judging from essays I've read from people who grew up watching the show, it's held in as high esteem as Sesame Street and The Electric Company are to my generation, so I'm including it here. This only made #55, so I guess it just never took off in the US:
http://www.youtube.com/watch?v=1dSyIDtDesY