"Boy With Luv" (작은 것들을 위한 시) is a song by BTS, featuring Halsey. It was released on April 12, 2019 as the title track for their sixth mini album Map of the Soul : Persona.
A Japanese version of this song was released on July 3, 2019 alongside with "Idol" and original Japanese song "Lights", for their 10th Japanese single "Lights/Boy With Luv"
At the time of its release, the song's music video was the most-viewed YouTube music video debut in 24 hours with 74.6 million and also became the fastest music video to reach 100 million views in under two days.[1]