Sian is not the only cast member in Single’s Inferno 4 with a familiar background! While Sian previously appeared on Produce 48… …new addition Park Haelin was once a contestant on Mixnine. Haelin appeared as the new girl in episodes 5 and 6 of the show. NEW GIRL IS SO PRETTY!!#SinglesInferno4 #SinglesInferno4Ep5 Haelin pic.twitter.com/BZWupDQZi5 —…
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