The South Korean boy band performed the song remotely at night from an empty bridge on Wednesday.
Members Jin, Suga, J-Hope, RM, Jimin and V kicked things off by sitting in pink chairs that were located on the bridge.
BTS pulled out their signature array of dance moves in front of a collection of lights, which kept the bridge well lit.
"Butter," released in May, has been the No. 1 song on the Billboard Hot 100 chart for the last seven weeks. BTS had also performed their other English-language track "Permission to Dance" Tuesday on The Tonight Show.