KO One
Before this drama was aired there was not much interest in it, due to the storyline and unfamiliar cast. Despite the new encounters, the ratings of "KO One" exceeded expectations. Although the ratings were not high, it brought fame to three of the four leads (Jiro Wang, Calvin Chen, Aaron Yan), who are part of the then newly formed Taiwanese boy band called Fahrenheit. This drama also brought fame to the Taiwanese artist, Tank who wrote and sang the opening and ending theme songs. The "KO One original soundtrack" was the best selling soundtrack of 2013, selling more than 60,000 copies in Taiwan within the first month of release.