Permission to Smile at Halsey and BTS's Reunion: "The Coolest Band in the World"

LAS VEGAS, NEVADA - MAY 01:  Halsey (4th L) and BTS perform during the 2019 Billboard Music Awards at MGM Grand Garden Arena on May 1, 2019 in Las Vegas, Nevada.  (Photo by Ethan Miller/Getty Images)

Halsey declared BTS "the coolest band in the world," and the ARMY agree! The singer posted photos of themself backstage alongside RM, Jin, Jimin, Suga, Jungkook, V, and J-Hope during night three of the group's Permission to Dance On Stage concert run in Los Angeles. BTS kept it chill in the photos and served subtle smizes, but Halsey couldn't contain their excitement with a wide grin as they crouched in front of the band. "Beyond words 🔮," Halsey described on Instagram of watching the Korean boy band on stage on Wednesday. My only wish is that Halsey did a surprise performance like Megan Thee Stallion did on Sunday.

The pop star collaborated with BTS for their hit "Boy With Luv" and for "Suga's Interlude" on her Manic album. Clearly, they have a strong bond. The Grammy-nominated artist sweetly referred to BTS as the "uncle gang" to baby Ender and included a photo of the tiny tyke sitting on her shoulder in the photo gallery. Check out the photos below for a serotonin boost!