What was the release date of a song by  Bae Su-ji that sold more than 1.3 million copies?
Dream (Suzy and Baekhyun song):  Having sold over 1.3 million copies, the song received multiple accolades at major South Korean music award shows in 2016. Bae Suzy: Bae Su-ji (; born October 10, 1994), better known by the mononym Suzy, is a South Korean singer and actress.
i don't know