By2
Singaporean musical group; twin sibling pop duo
By2 is a Singaporean duo composed of twin sisters Miko Bai and Yumi Bai. They gained attention with their first two studio albums, NC 16 and Twins, but it was not until 2010 when they released their third studio album, Grown Up, for which gained them significant popularity. The album was responsible for 33 percent sales of albums in the Chinese market and 18 percent sales of albums in Taiwan during the week of 9 to 15 April 2010.
Name
Their duo band was named "BY2" after their surname Bai and that they are twin sisters.
Career
Pre-debut
From a young age, both sisters were exposed to performing arts and learned the violin, piano, ballet and many other styles of dancing. As they reached adolescence, their passion for performing grew and they picked up more performing skills. They joined the Chinese Folk Dance in their secondary school, Yio Chu Kang Secondary School, as part of their co-curricular activity. These sisters have been given different hairstyles for easy identification due to their uncanny resemblance. However, they claimed to be different in terms of personality. Miko, Bai Wei-Fen has been described as more introverted and quiet while her sister, Yumi, Bai Wei-Ling, has been described as a more extroverted and outgoing person.
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The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Apr 10, 2026. The linked authority identifier is Q5003756. VIAF identifies the subject as 232933539. The Library of Congress control number is no2012042181. 1 of 4 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2010.
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This entry incorporates text from “By2” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.