In order to promote the album, EXID promote the single in various music programs. Promotions of the song "I Feel Good" started on August 17. EXID held their first comeback stage through KBS's Music Bank on August 17, 2012.
In South Korea, "I Feel Good" entered the Gaon Single Chart at number 56 during the week of August 13, 2012. During that week the song was downloaded 57,697 times. "I Feel Good" also appeared in the Gaon Monthly Chart. By the end of August, "I Feel Good" peaked at number 122 on Gaon Monthly Single Chart and had 110,103 downloads sold. By the end of the year 2012, the song was downloaded only 150,000 times.