BTS, a South Korean boy band, is one of the most widespread musical bands in the world, with a passionate fan base numbering in the millions. It turns out that some of those fans are also celebrities. BTS got a chance to rub shoulders with their celebrity supporters while seated right in the middle of things when they presented an award at the 2019 Grammys; a few months afterward, BTS flew into New York City for a concert on Saturday Night Live with host Emma Stone — who outed herself as a significant buff as well. And that was just the start of a high-profile year that includes multiple TV appearances and a performance at the 2020 Grammys alongside Lil Nas X, Diplo, Mason Ramsey, and Billy Ray Cyrus on the smash “Old Town Road.”

1. Shawn Mendes is a singer and songwriter from Los Angeles.

BTS and Shawn Mendes, who is himself a global megastar, met backstage at the American Music Awards in 2017 and discussed putting together a duet while on camera.

2. Steve Aoki is a DJ and producer.

Steve Aoki is known for his dance music hits, having collaborated with musicians such as Kid Cudi, Louis Tomlinson, and blink-182, as well as performing at festivals and nightclubs all over the world. He began his collaboration with BTS by remixing “Mic Drop” and “The Truth Untold.” His most recent collaboration with BTS, “Waste It On Me,” has just smashed records.

3. James Corden is a television host.

BTS visited James Corden’s Late Late Show in the fall of 2017, where they played a high-energy game of Flinch with the host, much to the delight of the audience. The trio returned nearly a year later to sing one of their new songs, demonstrating how much Corden enjoyed the experience.