SECRET

Secret (Korean: 시크릿) was a South Korean girl group formed by TS Entertainment in 2009. The group originally debuted with four members: Jun Hyo-seong, Jung Ha-na, Song Ji-eun and Han Sun-hwa. They released their debut single "I Want You Back" October 2009. Their debut was not a commercial success and it was not until the following year that the group saw a rise in popularity. In 2010, Secret released two singles "Magic" and "Madonna", which reached No. 2 and No. 1 respectively on the Gaon Digital Chart. They received the "Newcomer Award" at the 25th Golden Disk Awards.

In 2011, Secret adopted a girl-next-door image through songs like "Shy Boy" and "Starlight Moonlight". Secret won two awards at the 1st Gaon Chart Awards for the months of January and June. Secret released their first full-length album Moving in Secret in October 2011, featuring the lead single "Love is Move".

In August of the same year, Secret made their Japanese debut releasing their first single, "Madonna", a remake of their Korean hit single, which debuted at number nine on the Oricon charts. Throughout 2012, Secret heavily promoted in Japan releasing two Japanese singles, "So Much For Goodbye" and "Twinkle Twinkle", prior to releasing their first full-length Japanese album, Welcome to Secret Time. Twinkle Twinkle was used as the ending theme song of the Naruto spin-off, "Naruto SD: Rock Lee and his Ninja Pals" which aired on TV Tokyo.

After almost a year of absence from the South Korean music industry, Secret released their third extended play Poison in September 2012 followed by the digital single Talk That in December. The following year Secret released their fourth extended play Letter from Secret in April 2013 and their third single album, Gift From Secret in December 2013. In August 2014, Secret released their fifth extended play Secret Summer.