Broods are a New Zealand brother and sister duo, Georgia and Caleb Nott. This debut single finds them linking up with Lorde's soundscaper Joel Little. The pair originally met the producer after being discovered in a musical competition when they were still in high school. Little helped the siblings experiment with their sound in between periods of work on Lorde's first album. "When we first started out, we didn't know who the hell we were as a band," Caleb told Billboard magazine. "Even though [Joel] has been pretty busy, it's been good to have him there as a well-informed opinion, and to help us out whenever we need him."
The song finds Georgia murmuring about burning bridges and sinking or swimming over an osculating Alt-Pop arrangement. She told Billboard magazine that she came up with the concept for song while lying in bed one night and Little polished what was a "really average demo."
"Come Dancing" by The Kinks was inspired by the older sister of Ray Davies, who would make guys take her out dancing and spend their money on her, only to send them home frustrated with just a peck on the cheek.
"Lean On" was originally sent by Major Lazer to both Rihanna and Nicki Minaj's camps as a slower reggae track. After both parties rejected the tune, Major Lazer recruited Danish singer MØ to supply vocals and recorded it themselves.