Secret

Secret (Korean: 시크릿) is a four-member South Korean girl group formed in 2009. The group consists of Jeon Hyosung, Jung Hana, Song Jieun and Han Sunhwa. The group is signed under TS Entertainment and released their debut single, "I Want You Back", in 2009. In 2010 they released two mini albums entitled Secret Time and Madonna with lead singles "Magic" and "Madonna".
In 2011, they released three other singles, namely "Shy Boy", "Starlight Moonlight" and "Love is Move". Jieun, the main vocalist, also released a solo track titled "Going Crazy" featuring Korean rapper, Bang Yong Guk. In August 2011, the group made their official debut in Japan. Secret was one of the first three Korean girl groups to debut at the top 10 on the Oricon charts, the others were Kara and Girls' Generation being the first and second respectively. Their first studio album, Moving in Secret was released on October 18, 2011. Aside from their commercial accomplishments, the group is well-known for their transitions to cute and girl-next-door image through songs like "Shy Boy" and "Starlight Moonlight" after from displaying a sexy image on their debut period back in 2009 and 2010.