The girls started recording on September 29, 2015. The girls are working with the hit-maker, Max Martin "It’s a really good vibe for recording — [Max] is in a great spirit the whole time,” she notes. “We’ve been wanting to work with Max for a while, and his camp as well. They’ve produced some of the best records of all time, year after year, consistently. They’re so talented and creative, and there’s real camaraderie and positivity.", said Lauren Jauregui on a interview with Billboard.
The girls were also aiming for a urban, R&B and soulful vibe in this new record: "For starters, we definitely want to mature in terms of our lyrics and content,” says Jauregui. “Although [on the first album] we touched upon a bunch of subjects that we definitely agreed with and our very relevant to us, like girl power and self-love, hopefully this time around we can have some more vulnerability, some more ballads and mid-tempo type [songs], to balance out this album. We want you to sit through it and feel a roller coaster of emotions. We’re also trying to make it a bit more soulful. The whole R&B, urban, Destiny’s Child vibe? We’re definitely going to try and hone in on that this time around. We’ve recorded some dope songs already, some really sick tracks with crazy horns all over the place.”