Released: July 20, 2019

Songwriter: Ellen Berg HYO (효연) Kago Pengchi Cazzi Opeia

[Verse 1]
유일한 master piece
이  밤은 나의 pick
터진  조명 아래로
시작되는 신드롬

[Pre-Chorus]
볼륨을 높여 즐겨
That’s  my style
알아  단 한 번뿐인 오늘 밤
내 멋대로 해 틀을 벗어나
준비해  모두 날 따라와

[Chorus]
I'ma badster

[Post-Chorus]
미쳐도 돼
뜨거운 심장에
솔직하겠어 
I'ma badster
Don’t touch
Go crush
I'ma badster

[Verse 2]
심장 속 metronome
템포를 올려 more
후회하지 않을 걸
나를 따라 움직여

[Pre-Chorus]
자유로운 걸 원해 누구나
취한 것처럼 비틀댄 이 밤
이성 안에 널 가둬 두지 마
단번에 난 선을 넘어가

[Chorus]
I'ma badster

[Post-Chorus]
미쳐도 돼
뜨거운 심장에
솔직하겠어
I'ma badster
Don’t touch
Go crush
I'ma badster

[Outro]
I'ma badster
I'ma badster

HYO (효연)

Kim Hyo-yeon (born September 22, 1989), better known mononymously as Hyoyeon, is a South Korean singer and television personality. She debuted as a member of girl group Girls' Generation in August 2007, who went on to be one of the best-selling artists in South Korea and one of South Korea’s most popular girl groups worldwide.

Later in June 2016, Hyoyeon was featured in the song “Up & Down” from fellow Girls' Generation member Taeyeon’s second mini-album Why. In August 2016, she collaborated with miss A member Min and 2AM member Jo Kwon to form a special group named Triple T and release a single titled “Born to Be Wild”, featuring Park Jin-young, as part of S.M. Entertainment’s Station music project.

In December 2016, Hyoyeon released her first solo song since debut titled “Mystery” as another single for SM Station. To accompany her solo release, she performed the song on various Korean music shows and starred in her reality show, Hyoyeon’s 10 Million Likes 2.