Emotional vocalist Lim Han Byul (Onestar), known for his extensive career as a member of A'st1, Monday Kiz, and more, will be returning with a duet single!

Lim Han Byul plans on releasing the official MV teaser for his upcoming duet single "One Spring Day in May" later today on May 10 at 6 PM KST. Lim Han Byul's duet partner is none other than another emotional male solo vocalist - EXO's Chen!

Meanwhile, Lim Han Byul's new single "One Spring Day in May" was composed and written by the singer himself, a sentimental, soft spring melody. The full duet single featuring Chen will be out via various music sites this May 13 at 6 PM KST.