IU is a singer/actress signed to LOEN Entertainment. Throughout the years, she has become one of the most popular artist in the music industry. She is known for her long ranged voice, which is shown in her hit single “Good Day“, where she hits three octaves. IU has acoustically covered songs by several Idol groups like SNSD, BIGBANG, and even SHINee (Some in which she has covered along side with MBLAQ‘s Thunder). She has acted in several roles in various dramas. One of her major roles was in “Dream High“ as Kim Pil Sook.