On September 14, 2016, MTV News reported that Lee had worked on music for the film "Blind", starring Alec Baldwin and Demi Moore. The film was premiered at the Woodstock Film Festival on October 13, 2016. On February 10, 2017, Lee released an English-language cover of Francesca Michielin's "L'amore esiste" ("Love Exists"), which she heard while working on a film project in Italy. With Guy Sigsworth as producer and Dave Eggar providing string arrangements, Lee recorded her translated and reinterpreted version of the song over the course of a week at Flux Studios in New York City. In March 2017, the song "Speak to Me" was made available on streaming platforms. It features as the end theme music for the film "Voice from the Stone". In 2018, Lee collaborated with Veridia on their single, "I'll Never Be Ready", where she played piano. She stated that collaborating on the song helped her cope with the passing of her brother, Robby.