“작은 것들을 위한 시 (Boy With Luv)” is the lead single from BTS' 2019 album Map of the Soul: Persona featuring American artist Halsey, who has been a fan of the group since 2017. The pop anthem recalls how love is one of the strongest forces for someone to have.

Halsey hinted the collaboration back in November of 2018 by saying the following:

I think we both have this conceptual thing that we really like to do so it can be cool to find some kind of like bridge, like that you know it’s really great for their mo and my ma that it kind of like signify the whole thing together.

Its English title is reminiscent of their 2014 hit “상남 (Boy in Luv)” similar to how the intro song for Map of the Soul: Persona, “Persona,” is reminiscent of their 2014 intro song “Intro: Skool Luv Affair.” Both are throwbacks to BTS’s Skool Luv Affair era, and both indicate growth from that time.

The translation of its Korean title, “A Poem for Small Things,” hints toward the emotional message of the album.