In Chinese contexts her name is usually written as the Latin letters IU, not transliterated. Fans call her 国民妹妹 (Nation's Little Sister).
In Pop Culture
IUIU
IU / Lee Ji-eun
Born 1993 in Seoul; real name Lee Ji-eun (이지은 / 李知恩). Stage name IU stands for 'I and You.' Debuted in 2008; Korean solo hits include Good Day (2010), Through the Night (2017), Celebrity (2021). Also a leading actress — starred in Moon Lovers: Scarlet Heart Ryeo (步步惊心·丽, 2016), My Mister (2018), Hotel del Luna (2019), and as Lady Aoi in Broker (2022).