BTS is the first K-Pop band to perform on Saturday Night Live, and the fans made time to be there. Some had been camped outside 30 Rock since Monday, awaiting the Korean heartthrob’s SNL debut. Any mention of the band (especially during “Weekend Update”) produced gnarly screams from the studio audience. BTS performed “Boy With Luv,” the single from their new album, Map of the Soul: Persona. The song features former SNL host Halsey, who will perform the song with the boys at the Billboard Music Awards May 1.