"Magnets" has Lorde crooning an electronic beat created by Disclosure's superstar DJ duo Howard and Guy Lawrence - with whom she previously collaborated at the 2014 Brit Awards, reported Digital Spy.
The lyrics in "Magnets" are cryptic, with references to 'secret languages' and embracing 'the point of no return'.
This is the first lead single from Lorde since 2014's "Yellow Flicker Beat", from the "Hunger Games: Mockingjay, Part 1" soundtrack.
"Magnets" features on Disclosure's highly-anticipated second album Caracal.
Caracal also includes featured vocals from Sam Smith, The Weeknd, Kwabs and Miguel.