20 1 11In 2003, he participated in South Korea's first documentary reality TV series "Cheongdam-dong11".
On March 20 14, he participated in the TV series "qingtandong11-N. Flying"; In April, I participated in the program "Idol Dance Competition D-Style" and danced PK in groups.
20 15 February 26th, AOA's first reality show "Open your heart! AOA》; In June, he starred in the travel reality show "Beautiful Day" of MBC Music Television, which was filmed in Hainan Province, China.
20/kloc-in February, 2006, FNC Entertainment, a brokerage company, announced the establishment of a new AOA sub-group composed of Unai, Hui Jing and Amy. The name of the group was determined as AOA cream. 12 February, AOA Frost released the first single "I am Jelly Baby ()" and released the MV of the song.