Best We The Boyz! Hello, I am Juyeon! Lee Ju-yeon (이주연) is the Main Dancer, Vocalist, and Visual of The Boyz, a boy group under Cre.Ker Entertainment. Among Juyeon's specialties is that he can speak English and Japanese which comes in handy with the group. Juyeon was casted when a casting director spotted him while watching a concert with his family.