Wanna One Ong Seong-wu, 'The Cool Is Basic'

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Group Wanna One Ong Seong-wu attended the Chicka Chicka Boom PLAY fan event held at the AMOREPACIFIC Corporation building in Yongsan, Seoul on the afternoon of the 13th.

Group Wanna One Ong Seong-wu attended the 'Chicka Chicka Boom PLAY' fan Event held at the Amorepacific Corporation building in Yongsan, Seoul on the afternoon of the 13th.