Yes, you guessed it right! King Taeyeon is singing the Korean version of "Into The Unknown" for Disney's Frozen 2!
The Girls' Generation star made the confirmation on Instagram. "Taeyeon’s music world that includes everything! #Into_the_Unknown #Frozen2 #Dontbeafraid #GrandPremiereinNovember," she wrote. Can't think of anyone to do but her.
While we wait for that, let's watch Taeyeon make a bold comeback with "Spark"