"Boy with Luv" (Korean: 작은 것들을 위한 시; RR: Jag-eun geosdeul-eul wihan si, lit.

"A Poem for Small Things"[7]) is a song recorded by South Korean boy band BTS, featuring American singer Halsey, as the lead single for their sixth extended play Map of the Soul: Persona.

[10] "Boy With Luv" featuring American singer Halsey has been described as a "funk pop" song about happiness and love.

According to Tamar Herman of Billboard, the song describes how true strength and love come from finding joy in the smallest things in life.

[5] Yim Hyun-su from The Korea Herald described the lead single as "an upbeat electro-pop song with catchy hooks".

[14] The teaser features Halsey working in a ticket booth before walking outside to find BTS sitting on a couch.

[21] The music video crossed 1 billion views in October 2020, eighteen months after release, and is the band's second to reach the mark.

They performed the song again to kick off Good Morning America's Summer Concert Series at New York's Central Park on May 15, 2019, along with their 2016 single, Fire.

[32] "The first taste of BTS' 'Map Of The Soul: Persona' was an incredibly sweet one – a vibrant burst of bubblegum pop with an added Halsey twist.

In that article, Jeff Benjamin described it as "euphoric pop sound" while praising how the song "shows their maturity and growth and comes with a message – to allow love to take over gradually and to make changes from the inside.

"[36] Rhian Daly from NME called the song "addictive and deftly balanced" with Halsey's chorus "fitting in naturally and seamlessly".

1 on the real-time charts of six major music sites including Soribada, Genie, Naver, Bugs, Mnet, and Flo on April 12.

[53] It was reported that multiple servers crashed, including Korea's largest music site Melon, due to the number of fans streaming at the same time.

[60] "Boy With Luv" was certified Gold by the Australian Recording Industry Association (ARIA) for selling 35,000 units in Australia.