This will mark the Grammy winner's first performance in the history of the show and the TV debut of the new track.

Cher, Lady Gaga, Bad Bunny, Miley Cyrus, Snoop Dogg. That's just a smattering of the big names slated to appear at an epic ...

Halsey appeared on 'The Tonight Show' to tease their upcoming tour and discuss their recent engagement to actor Avan Jogia.