By2 is a 17-year-old "Bai" twin girl from Singapore. She stood out from the 2500-person rookie selection meeting and joined Ocean Butterfly Records. In 2008, he released his first album "16 Underage". BY2= = Sister Bai+Sister Bai Weiling. MIKO's sister information: Name: (Sister) Bai Peh English Name: Miko Birthday: 1992.3.23 Sister-MIKO Bai Age: 18 Height: 164cm Weight: 43.5k G Country: Singapore Specialty: singing, dancing, gymnastics. Hobbies: listening to songs, shopping, singing to others, singing and dancing, playing music, shopping and traveling around the world. Sister Bai Weiling's information: Name: (Sister) Bai Weiling Pei Lingwei's sister-Bai Weiling Ling Wei English name: Bai Weiling's birthday: 1992.3.23 Height: 163cm Weight: 43kg Age:/kloc.