There are a number of K-Pop stars who have gone to Japan for concerts and even released their tracks in Japanese. Here is the list of those Idols who did really well in Japan. MYNAME: MYNAME is a South Korean boy group which was created by Fly to the Sky member Hwanhee. They made their debut in Korea in 2011 but they became more popular when they made their debut in 2012. They released 4 singles, with the Japanese version of all “Hello & Goodbye” and “Message” as well as “What’s Up” also a mini album “Summer Party.” They finished house tour in Japan titled “1 st Story” in March and April.