What is your favorite 1 hit wonder from the 70's?


Many on Audiogon agree the 1970's was the best decade for popular music. Whether it was the quality of songwriting or the diversity of music. The decade also produced many unforgettable 1 hit wonders. My personal favorite is Afternoon Delight by Starland Vocal Band, what's yours?
dayglow
I believe that Spiral Staircase charted with "More Today Than Yesterday". Great song, but late '60's IIRC.

Marty
Nobody mentioned yet.. but from my part of the world, hits like..

-Do That To Me One More Time (Captain & Tenille)
-Please Don't Go (KC & The Sunshine Band)
-Love Is In The Air (John Paul Young)
-First Time Ever I Saw Your Face (Roberta Flack)

Are some that certainly made their marks during the '70's--while not exactly a one hit wonder, but..
Miss those great eras, the '70s & '80s.
You know, reading and being reminded of some of these songs, I'm not sure why we are nostaglic. :)
Little switch to the soul/disco side:
first, Disco Inferno by the Trampps- I think the lead singer went to prison for a while after he pistol whipped his girlfriend on Valentine's Day;
and...
Shuggie Otis, covered by the Bros Johnson:
Strawberry Letter #23- classic soul. Doesn't get any better than that.