Following her supporting role in teen drama Dream High and minor appearances in several television series, IU starred in You're the Best, Lee Soon-shin, Pretty Man, The Producers, Moon Lovers: Scarlet Heart Ryeo and My Mister.
Mengikuti peran pendukungnya di drama remaja Dream High dan penampilan kecil di beberapa serial televisi, IU tampil dalam serial You're the Best, Lee Soon-shin, Pretty Man, The Producers dan Moon Lovers: Scarlet Heart Ryeo.