Wanna One Kang Daniel is smiling brightly.
Wanna One's 111=1 (POWER OF DESTINY) includes 11 songs including the title song Spring Wind, and Fireworks Play, which Ha Sung-woon wrote and composed.
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About Kang Daniel
Kang Daniel is a South Korean singer-songwriter, actor, and entrepreneur that rose to fame in early 2017 as the first-place winner of the second season of reality competition series Produce 101.
 Wikipedia