Lorde's new single has dropped

After what has felt like an eternity of teasers, cryptic messages and waiting - Lorde has finally dropped her new song.

Earlier

The Kiwi pop star's "sad and joyous" single Green Light is set to drop at 8am, with a music video that shows her dancing to the upbeat, high-energy song in a nightclub.

And it turns out the anticipation is getting to Lorde just as much as it is her fans.

"OMG it's today i could vomit," she wrote on Twitter this morning.

Fans have responded to Lorde's tweet this morning with rabid excitement.

"IT IS HAPPENING. IM VOMITTING. IM SO EXCITED [sic]," one fan said on Twitter.

"I can't wait! Time is going so slow," another said.

Lorde has been teasing fans for several days with cryptic messages on social media and even sending them on a treasure hunt around Auckland on Wednesday night, where dozens gathered behind the Town Hall to watch short videos projected onto a building.

The videos were less than five seconds long and left fans yearning for more.

were heeeeere pic.twitter.com/ChQqLZfUjj

— fwog 🍰 krtsk hell (@shrinpus) March 1, 2017

The 20-year-old took to Twitter yesterday to describe the single as "the first chapter of a story I'm gonna tell you, the story of the last two wild, fluorescent years of my life".

Lorde promised Green Light will make listeners dance.