List of songs written by Jay B

Lim Jae-beom (born January 6, 1994), better known as Jay B and formerly JB, is a South Korean singer and songwriter, best known as a member and leader of South Korean boy band Got7.

He got interested in musical composition when he was a b-boy, but started writing songs only after joining JYP Entertainment in 2009: he was first credited as a lyricist for the song "Bad Behaviour" from Got7's 2014 extended play Got Love. In 2016, he became more involved in composition and adopted the pseudonym Defsoul, which was shortened to Def. the following year.

Songs
All song credits are adapted from the Korea Music Copyright Association's database, unless otherwise noted.