![Whitney Houston - We Didn't Know U.S. promo CD front cover](https://cdn-p.smehost.net/sites/5bc7eb1a2a034f359ad99734583ec240/wp-content/uploads/2009/07/whitney_wdk_uspromo_front.jpg)
July 1992 (31 years ago) – Whitney’s duet with Stevie Wonder, “We Didn’t Know,” peaked at #20 on the Billboard Hot R&B/Hip-Hop Songs chart. It was the sixth Top 20 hit on the chart from her I’m Your Baby Tonight album. The song was written and produced by Stevie Wonder.