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Hoyeon (호연) is a South Korean singer under LUK Factory. He is a member of the Korean Pop boy group NOIR.
- Stage Name: Hoyeon (호연)
- Real Name: Ryu Hoyeon (유호연)
- Birthdate: February 6, 1998
- Blood Type: O
- Height: 177cm
- Weight: 63kg
- Hobbies: Plastic model assembling, walking
- Specialties: Choreography, beat cutting
-  Produce 101 Season 2
- He was trainee for one year and two months prior to his appearance on Produce 101 Season 2.