• Full name: Yoo Jeongyeon
  • Date of Birth: November 1, 1996
  • Nationality: Korean
  • Blood type: O
  • Group: Twice
  • Agency: JYP Entertainment
  • Debut: October 19, 2015
  • Position in the group: Lead Vocalist
  • Family members: mom, dad, 2 older sisters, uncle, Jeongyeon  
  • Nickname: ‘Girl Crush’,’Jeongyeon Mom’
  • One of her sister is a Korean actress, “Gong Seung-yeon”

From Twice Instagram