Hyoyeon

Hyoyeon is the most diligent member to clean up the living room and her room at the dorm.

Hyoyeon can memorize a dance routine just by watching it once or twice.

Yuri and Seohyun used to be scared of Hyoyeon.

Hyoyeon has 14 piercings, including one on her tongue.

According to the members, Hyoyeon is the moodmaker and funniest of the group.