Former Boyfriend member Jeongmin has dropped his music video teaser for "At 21".

Jeongmin is returning as a solo artist after Boyfriend's disbandment last month, and his solo debut song is a romantic ballad about remembering a moonlit night when he was 21 years old. The MV teaser follows Jeongmin as he walks through a city with earbuds in and reminisces on the past.

Check out the MV teaser above! Jeongmin's "At 21" drops on June 19 KST.