BTS was just on the Tonight Show where Jimmy Fallon interviewed them on a NYC subway car and they ate at Katz deli and performed…

BTS was just on the Tonight Show where Jimmy Fallon interviewed them on a NYC subway car and they ate at Katz deli and performed in an empty Grand Central. It was filmed in Grand Central while it was closed from 2am to 5:30am and filmed at Katz around February 6th while it was open to…