“Don’t You Know” is indeed one of Heavy D & the Boyz’s biggest hits. It’s from their third album, “Big Tyme,” released in 1989. Heavy D’s charismatic flow and the smooth R&B vibe of the track contributed to its success. If you haven’t heard it in a while, it’s worth giving it a listen. This is one of those tracks that make you sit back, think, and appreciate the one you love. Heavy D, you are truly missed. RIP.