Halsey performed a free show in Minneapolis on Monday night to 8,000 fans at The Armory in Minneapolis.

Halsey announced the concert only 2-days before the show and tickets to the free show disappeared in minutes after being released.

The free show came days after she released her latest single 'Nightmare' and she released the video of her doing a very energetic performance of the song on here official YouTube channel.

Halsey said on Twitter, "There’s a reason this is one of my favorite cities to play!"