“We Didn’t Know” — Whitney’s duet with Stevie Wonder — was released by Arista Records as the sixth and final single from her I’m Your Baby Tonight album 28 years ago today (April 14, 1992). “We Didn’t Know” was an R&B-only release in the U.S., where it peaked at #20 on the Billboard Hot R&B/Hip-Hop Songs chart. The song was written and produced by Stevie Wonder.