After the breakup of the heavy metal band Sinawe in 1991, Seo Taiji switched gears and formed the group Seo Taiji and Boys with dancers and backing vocalists Yang Hyun-suk and Lee Juno. Yang said he first met Seo when the musician came to him to learn how to dance. "Blown away" by his music, Yang offered to join the group, and they later recruited Lee who was one of the top dancers in Korea and joined the group as a background dancer, despite being highly regarded in his own right, because the music "moved [his] heart." Seo Taiji came across MIDI technology for the first time in South Korea in the early 1990s and started experimenting with different MIDI sounds to create a new type of music that had not been heard by the public. He initially had no plans to debut as a dance/pop boy group, and Seo Taiji and Boys' mainstream success was a surprise.
