Alex Clare's Three Hearts album was recorded in London and Los Angeles. It acts as the follow-up to The Lateness of the Hour, which shifted half a million copies. Speaking about the LP, Clare said: "The new music definitely represents the big changes in my life. The Lateness of the Hour was a very cathartic album; I was getting a lot of things off my chest. But the new record is very much an album of thanksgiving; of gratitude that things have worked out pretty sweetly for me."
The title track was inspired by a visit to the doctor with Clare's wife after finding out she was pregnant. "They checked for a pulse and it was like, 'wow, my wife has two heart beats!,' the singer recalled to The Independent. "It just blew my mind. I got to the studio and wrote the song in a day."
The Frozen song "Let It Go" was recorded in 42 different languages for the movie's foreign releases. This earned it an entry in the 2016 Guinness World Records publication for "Most Languages Featured on a Single."