Praise for Youth is the theme song of the movie Hidden and Great, which was sung and written by Li Xianyu himself. Inspired by the content of the film, the lyrics are intended to praise and praise the young people who have contributed to the country and their youth. OST is also to express gratitude to the fans.
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Besides Kim Soo Hyun, the first hero, Li Hailang, a spy disguised as a volunteer rocker, and Li, a pure spy disguised as a high school student, played by Li Xianyu, a child star, also left a deep impression on the audience.
Ki-wong Park, who made his debut early and has rich performance experience, showed solid acting skills in the film and became the solid backing of two young actors. Although the role fluctuates slightly among the three roles, the relaxed performance also firmly grasps the audience's emotions.
In addition, the role of being the lead singer of the band as a student also made Li Hailang sing well in the film, adding a lot of color to the role. Li Xianyu, the youngest, has captured the hearts of many female audiences with her young appearance and no inferior action acting skills.