In October 2017, Sooyoung left SM Entertainment although she remains as a member of Girls' Generation. She joined Echo Global Group and released her first solo single "Winter Breath" in 2018, before moving to Saram Entertainment in 2019.
In October 2017, Sooyoung left although she remains as a member of Girls' Generation. She joined Echo Global Group and released her first solo single "Winter Breath" in 2018, before moving to in 2019.
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