Lorde danced above the crowd as fans sang along. In a white button-down with a bikini top underneath and baggy jeans, the singer punched the air and swayed as listeners lifted their phones to capture the moment, flashes lighting up the darkened park.

Lorde is ushering in her comeback with a bit of chaos as the superstar debuted her new single "What Was That" in front of hundreds of fans at Washington Square Park Tuesday night, before sharing Wednesday that the song would drop Midnight tonight,

Lorde debuted her forthcoming single "What Was That" at a pop-up event in New York's Washington Square Park Tuesday night, about two hours after police had shut down the gathering due to overcrowding.