John Legend, Dua Lipa and Will Ferrell were among the other stars who appeared on the show.
'Homefest' will also feature contributions from Billie Eilish, Dua Lipa and Andrea Bocelli.
The K-Pop stars performed tracks from their new album, 'Map Of The Soul: 7', plus Bruno Mars and Post Malone covers.
K-pop icons BTS took over New York City’s Grand Central Terminal for an epic peformance for The Tonight Show Starring Jimmy Fallon.
It follows the original version and the recently-released mix featuring up-and-coming R&B artist Summer Walker.
In a wonderfully surreal episode, Eilish sang her hits ‘Ocean Eyes’ and ‘Bad Guy’, plus a cover of The Beatles‘ ‘I Will’ performed on a ukulele.
The show features the country star and a starry cast including James Corden, Camila Cabello, Leon Bridges and Lana Del Rey.
Also appearing will be James Corden, Kendall Jenner and the famous Radio City Rockettes.
The revealing new clip also sees the star discussing a variety of subjects including his family life.
“What I couldn’t believe was the extraordinary beauty of these lyrics that Taylor had written.”
Watch Smokey Robinson and James Corden perform old and new soul hits in a late night sing-off battle.
In the clip, frontman Matty Healy gets up close and personal with the camera, which shoots him from below as he climbs on Corden's desk and sings into the lens.
Universal has shared a behind-the-scenes look for the highly-anticipated film adaptation of the Andrew Lloyd Webber musical ‘Cats’, starring Taylor Swift.
This year's Emmy Award winners will be announced on Fox on 22 September.
TV showrunner Ryan Murphy has cast Ariana Grande as one of many stars in his latest film adaptation of the Tony-award winning musical The Prom.