I had not! Wowwww. Interesting, interesting. My dash failed me, I had no idea!
Looking it up, it’s a two part series, airing on February 17th and 18th, I guess her relationship with her mom is one of three different stories in it? Seohyun! Lol, I would not have picked it to be her, but any one of the SNSD ladies doing this is huge.