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Lee Sang-yeon (이상연; born November 4, 1996), known mononymously as Sangyeon (상연), is a South Korean singer-songwriter under One Hundred Label. He is the leader of the boy group THE BOYZ.
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![2020 THE BOYZ Online Concert [RE:AL]](https://cdn.moviefone.com/image-assets/845464/lZi3lGoMzmJzq4KirNQK6GDKvrb.jpg?d=360x540&q=30)
