The (often simply called the "Acid Smiley") is the definitive icon of the Acid House music movement and 1980s rave culture. While originally a corporate logo, its adoption by London club scenes in 1987 transformed it into a global symbol for hedonism, unity, and psychedelic dance music. The Evolution of an Icon
The strange, tangled history of the acid house smiley - Red Bull smiling_acid
The classic yellow smiley was created by graphic artist Harvey Ball for the State Mutual Life Assurance Company. He was paid just $45 for the design, which was meant to boost employee morale. The (often simply called the "Acid Smiley") is