This time I will introduce four of my girlfriends. Secret (시크릿) is a four-member girl group under LOEN Entertainment formed in 2009. Most of their songs are big hits in Korea ever since they had their debut. The first time I saw them was in Cheongyeocheon. I was there with my Japanese friends. They just had their debut at that time so many people didn't know them yet. But their performance was really good the audience had good reactions. Plus they really danced well. Some of their popular singles are Magic, Madonna and Shy Boy.