Profile[]
- Stage name: 효연 / Hyoyeon
- Real Name: 김효연 / Kim Hyo Yeon
- Nicknames: Princess Fiona / Dancing Queen / Hyorengi (Tiger) / Monster Fashion / Hyobaby / Laundry Girl / Queen of Variety Shows / Miss 23
- Profession: Rapper, Singer and Dancer December 7, 2010 - January 15, 2017
- Date of birth: 22-September-1989 (26 years)
- Height: 161 cm
- Weight: 50 kg
- Blood Type: AB
- Agency: SM Entertainment