It's IOI/Gugudan's Kim Se Jung's birthday today!
Kim Se Jung was born on August 28th, 1996, meaning she turns 20 today (21 in Korea). Jellyfish Entertainment congratulated her birthday with a beautiful photo.
But that's not all! Rhymer posted a video of the IOI girls coming to surprise Kim Se Jung during her recording, bringing her a cake and singing the birthday song on top of their lungs. Kim Se Jung, per her usual style, starts dancing along happily.
Happy birthday to Kim Se Jung!