The opening melody is reminiscent of Horace Silver's "Song for My Father",[5] over which Stevie engages in an English-speaking dialogue with a woman, trying to impress her with talk of worldliness of having been to "Iraq, Iran, Ukraingia", often misheard as 'Eurasia'.

Showcased on the 1973 Innervisions album that came from the period in which Wonder ... was experimenting with synthesized sounds with producer Robert Margouleff, it's a back-to-basics song (although it does feature a Moog bass, played by Wonder) that relies on the interplay of piano, percussion and that ecstatic voice.

[8] Cash Box called it an "interesting Latin flavored disk," going on to say that "the vocals are soft and perfectly accented by some fine piano by Stevie and great backing percussion.

"[9] Record World said that "quasi-Spanish banter introduces a Latin-lilting [song]" in which "the feeling [Wonder] produced on 'You Are The Sunshine of My Life' goes uptempo and uptown.

In 1992, British acid jazz band Incognito covered "Don't You Worry 'bout a Thing" on their third album, Tribes, Vibes and Scribes (1992).

[19] Sam Wood from The Philadelphia Inquirer deemed it a "killer version" that "springs off this disc with flourishes of bright, brassy Miami Horns, a suncopated house-styled piano figure, and Maysa Leak's stunning voice.