By2 is a Singaporean duo girls band based in Taiwan. The band is consisted of twin sisters Miko Bai and Yumi Bai. Their "BY2" name is after their surname Bai and the 2 is for twin sisters.

Miko Bai aka Miko Peh, Wei-Fen is older sister

Yumi Bai aka Yumi Peh Wei Ling is younger sister

Birthday:  23 March 1992
Origin: Yio Chu Kang, Singapore
Genres:  Mandopop, dance-pop
Years active: 2008–present
Ocean Butterflies Music (2008-2019) 
By2 Studio (2019-present)
Debut: 2008 "NC 16"

Studio album

    NC 16 (2008)
    Twins (2009)
    Grown Up (2010)
    90' Now (2011)
    Paradise (2013)
    Cat and Mouse (2015)
    Love and Love (2017)

Extended plays

    2020 Love You Love You (2012)


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