Sonamoo (Hangul: 소나무; stylized as SONAMOO, lit. Pine Tree) is a South Korean girl group formed by TS Entertainment. Their fans are called Solbangul (Hangul: 솔방울) which means pine cone. On December 29, 2014, Sonamoo made their official debut with the extended play, Deja Vu. The group consists of Sumin, Minjae, D.ana, Nahyun, Euijin, High.D and NewSun.
On December 29, 2014, Sonamoo officially debuted with the release of their debut EP, Deja Vu and held their debut showcase performance. The album debuted at the number one spot on Gaon’s weekly Album Chart. On February 25, 2015, they promoted “Just Go” as the second single off of their debut album.
On July 20, 2015, Sonamoo released their second extended play Cushion. The lead single was co-produced by EastWest and ₩uNo, who is known for being the former member of Speed, Taewoon. Members D.ana and NewSun also took part in writing the rap portion for two songs: “Deep” and “Let’s Make A Movie”. On September 1, 2015, they followed up their Cushion promotions by promoting “Round N Round” as the second single of the album.
On June 29, 2016, the group released their third extended play I Like U Too Much. The album presented a new side of the group with a brighter “girls next door” image compared to their debut concepts which the members themselves called “dark”. The group cited they looked up to Girls’ Generation for inspiration with this album.
On January 9, 2017, the group released their 1st single album I Think I Love U. The lead single is a brighter dance track produced by hitmaker Shin Hyuk who has previously worked with SHINee and EXO.
On July 27, TS Entertainment revealed a teaser image for Sonamoo’s Happy Box Project revealing that the group will be releasing three singles over the course of several months. The first single “Friday Night” was released on August 14. The rap portion of the single is written by NewSun.
Member Euijin was confirmed to be a contestant on KBS Idol Rebooting Project The Unit, which first aired on October 28, 2017. On November 6, Sonamoo continued their Happy Box Project releasing their single “I (Knew It)”. The single is a medium tempo dance track composed by hitmaker e.one, who has previously worked with Wonder Girls.