Just hours before the dynamic duo was slated to perform at the Prudential Center in Newark, New Jersey, police evacuated the stadium after discovering a suspicious package outside.
At around 3 p.m., cops cleared the staffers from the arena once they found the item along one of the Center's outer walls.
However, the package turned out to be just a harmless microwave. Sources say the police are being super cautious following the sniper attack that killed five officers in Dallas last week.
We don't know if Nick or Demi were in the building during the evacuation.
[Image via Instagram.]