Sechs Kies or 6kies (Korean: 젝스키스) was a South Korean male idol pop group popular in the late 1990s formed under Daesung Entertainment. Their name "Sechs Kies" is supposed to mean "six crystals" (representing the six members) in German although "Kies" actually is translated as gravel. They are popularly referred to and remembered by fans as "Jekki" for short. Their official fan club was called Dear Sechskies Friend (DSF) and the group's official fan club color was yellow.