While Houston's version of the 1985 classic is peppy, Smith's version slows down the tempo, making the song more of a brooding ballad.
Smith gave Rolling Stone a list of his top 10 voices in R&B and cited Houston and "How Will I Know" as his top choice. "[It's] a Whitney Houston song that makes me happy — it's a feel-good song," Smith said. "I love the juxtaposition of a melancholy lyric with an upbeat sound. People forget that's how she rose to fame. The more mature Whitney, like 'I Will Always Love You,' came later."
Watch Smith belt out the tune in the video below. --Meghan DeMaria