015B is a famous Korean duo consisting of two brothers, Jeong Seokwon and Jang Hoil, that gained popularity as a band in the 1990s. The band has never had a permanent lead singer, instead showcasing a rotating lineup of guest vocalists throughout their extensive discography. With a career spanning 30 years, 015B has experimented with almost every genre known to man and remains an old favorite of many music fans today.

“Very longtime Lovers”

From their 1992 album The Third Wave, “Very longtime Lovers” is about as ‘90s retro as you can get (it’s no surprise the song was featured in an episode of Reply 1994). With strong synth hits and electronic beats up the wazoo, “Very longtime Lovers” sounds like a perfectly upbeat bop, though the song is actually about the “old-married-couple” phase of a relationship, wherein lovers may begin to take each other for granted. 

“Mom Is Very Sick” feat. Jong Shinyoon

Released as a digital single in 2017, “Mom Is Very Sick” is a heartfelt ballad that pulls at the heartstrings from the first piano chord. The emotion builds as strings start to swell throughout the first verse, climaxing in a classic ballad finish, filled with fantastic vocals at the end of the song. The first time the band played the song in concert, both members were moved to tears on stage.

“Silly Boy” feat. 4Minute and Junhyung

In 2011, 015B collaborated with 4Minute and B2ST’s Junhyung to release “Silly Boy.” The funky song comes off the duo’s 20th Century Boy mini-album, sounding like a quintessential second generation K-Pop feel-good track. With bright synth strings and even brighter vocals from some of the biggest stars of 2011, “Silly Boy” practically feels like summer in song form.

“#tb 과거의 오늘” feat. Hongbi

Originally released as a single in 2019, “#tb 과거의 오늘” features the voice of one of the group’s more recent vocalists, Hongbi. With a sultry acoustic guitar and an even sultrier performance from Hongbi, the song makes for the perfect listen at the end of a long, tiring day. A spunky electric guitar line joins the instrumental in the second verse with soulful percussion. The song was later released on the band’s most recent full album, Yearbook 2019, earlier this year