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The trip will be his first official activity since his military discharge on August 18. Siwon will be participating in UNICEF's campaign to help children learn music, the 'SMile for U' project, from this coming August 21 through August 25. 

Siwon has been a volunteer for UNICEF's 'SMile for U' since 2010. During this trip, Siwon will not only participate in a promotional ad for UNICEF's 'Schools for Asia' project, but he will be visiting children in art centers, kindergartens, elementary schools, middle schools, and more.