Krystal Jung, formerly of f(x), released her first single album Solitary last November.
The album sold 37,018 copies on its first day!
She did this with zero promotions, a single jewel case CD that didn't even have photocards and/or a photobook or other extras.
According to Circle Chart the album sold a total of 38,115 copies so far – which is more than most female soloists (except for Taeyeon and IU) do.
How did she do this? I didn't realize she was still this popular in Korea?