Stevie Wonder, "Superstition". The early-70s were a great time for conscious R&B/soul. Stevie's playing pretty much everything you hear except the horns.
Lou Reed, "Walk on the Wild Side". Lou makes the pop charts, singing about transgender actresses, drugs, blow jobs, and Warhol's Factory.
Carly Simon, "You're So Vain". The big mystery was who Simon was referring to. Meanwhile, Mick Jagger proves to be a very hard-to-conceal backup singer.
Curtis Mayfield, "Freddie's Dead". Just how good were the early-70s for soul? This track missed the Best R&B Single Grammy because "Papa Was a Rolling Stone" was the same yea'.
Wings, "Hi, Hi, Hi". Sadly, I can understand the lyrics on this.
Al Green, "How Can You Mend a Broken Heart". The best thing anyone ever did for The Bee Gees.
Gladys Knight and the Pips, "Neither One of Us (Wants to Be the First to Say Goodbye)". This one did win a Grammy.
The Carpenters, "Goodbye to Love". Me, a long time ago, on Tony Peluso's guitar solos: "It's as if John the Baptist suddenly showed up in Target and grabbed shoppers by the throat, saying 'there's something going on here!'"