It was released online as a digital single on February 7, 2014 through Starship Entertainment.

"Some" is a medium tempo song with music composed by Kim Do-hoon, Xepy, and Esna, and lyrics written by Min Yeon-jae, Xepy, Esna, Lil Boi, and Junggigo.

The music video was directed by ZanyBros and starred B1A4's Baro and Soyou's bandmate Kim Dasom.

The song received numerous first place awards on various music show broadcasts, with five wins on KBS Music Bank (February 21, 28, March 7, 21 and April 4), two wins on Mnet's M!

The song was also number one for six weeks on the Billboard Korea K-Pop Hot 100.