There are two groups with the name Roller Coaster: 1) Roller Coaster is an acid jazz trio from South Korea. The group was formed in 1999 and has consisted of Jinu (bass and programming), Jo Won-sun (lead vocals and keyboards) and Lee Sang-soon (guitar) from its formation to the present day. They are pioneers of acid jazz in their home country, where the genre was previously non-existent. Prior to co-founding Roller Coaster, Jinu worked together with musicians such as Lee Seung-hwan and Yoo Hee-yeol.

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