Just over two weeks since Lorde released a 15-second snippet of what appeared to be a new song, the singer dropped the full version on April 24 — her new single titled "What Was That." The music video for the track shows Lorde walking around New York City, culminating in clips filmed from her appearance in Washington Square Park on Tuesday evening.

The New Zealand singer and songwriter has made a name for herself by being unconventional. In 2013, her debut album Pure Heroine and its lead single, "Royals," made her an international star. That very same year,

Lorde's new song "What Was That?" was written amid a painful breakup. Here's a breakdown of what the lyrics could mean.