Wait, Why Did Jimmy Fallon Sing 'Mr. Brightside' at the Jo Bros Concert?

Jimmy Fallon Surprises At Jonas Brothers’ Yankee Stadium Concert With “Mr. Brightside” Performance

Jimmy Fallon Crashes Jonas Brothers' Yankee Stadium Concert to Perform 'Mr. Brightside'

That's awkward! Kylie Minogue calls The Killers an 'indie band' - despite the Mr. Brightside hitmakers selling over 28million records