Bada signed an exclusive contract with WoongJin entertainment. In 2003, Bada released her debut solo album "A Day of Renew" that has sold approximately 130,000 records, according to the Music Industry Association of Korea. Bada became the first Korean idol singer to venture onto the musical stage in 2003 with the musical "Peppermint", a love story about a singer named Bada. It was written for her by creator and producer Lee Yuri, who is also responsible for other musical projects such as "Typhoon", "Mother" and "Winter Sonata".