Slipknot is an American heavy metal band who formed in Des Moines, Iowa in the mid-90s. Their self-titled album debuted in 1999, which caught a lot attention from the public for not just their music, but for their unusual, creative costumes that still turns heads today. They are known for their energetic and chaotic live concerts, which have contributed to the bands success. Slipknot has had number one albums around the world and chart hits include Duality and Psychosocial.