They might be a one-hit-wonder, but what a hit it is! To this day, the 1992 hymn What’s Up remains a radio favorite and a coffee shop cornerstone. The vocal melody is infectious, but the guitar parts actually hold their own: the acoustic strumming of Linda Perry is rock solid, and Roger Rocha’s Gibson lines are soulful and devoid of unnecessary sophistication. Crafting a perfect pop hit is an art form in itself, and 4 Non Blondes sure knew how to do it.