J-Hope from BTS creates history on the Lollapalooza stage.

As the artist entered the stage in Chicago's Grant Park, he appeared to abruptly emerge from a box and was met by a sea of adoring spectators.

Along with tracks from J-most Hope's recent solo album and BTS staples like "Dynamite," the audience rapped and sang along.

He gave a special shout-out to the "BTS Army," the group's super-fans, asking the crowd, "Do you want some more?"

Singer Becky G joined J-Hope towards the end of his concert for a performance of their joint song "Chicken Noodle Soup," which he also shared with fans in Korean.

Another South Korean boy band affiliated with the same company as BTS, Tomorrow X Together, made their US festival debut at this year's Lollapalooza, which was broadcast live on the Hulu website.

"Great communicational talents have been bestowed to these artists. Despite speaking various languages, their worldwide fan base is fervently passionate about their music "declared Perry Farrell, the man behind Lollapalooza, in June.

BTS became the first all-South Korean act to dominate Billboard's US top singles chart with "Dynamite," their first massively successful song entirely performed in English.

Additionally, they are one of the few groups since The Beatles to have four albums that reached number one in the US charts in less than two years.

The band has received two Grammy nominations, but has not yet taken home the prize.