Black Widow (Original Motion Picture Soundtrack)

Alexandre Desplat was revealed to be composing the music for Black Widow in January 2020. Late in the film's post-production, Lorne Balfe replaced Desplat as composer, which Desplat confirmed in May 2020. Balfe's score was released digitally by Marvel Music and Hollywood Records on July 9, 2021. Black Widow director Cate Shortland believed Balfe had created a "soulful score that is really Russian".

Balfe employed London's Metro Voices for a 118-piece orchestra and a 60-voice choir singing Russian lyrics, with a 40-voice male choir and 20-voice female choir, doing takes with and without lyrics. These lyrics were adapted from Russian poetry by Alexander Pushkin, Leo Tolstoy and Mikhail Lermontov. Balfe said that "the music of the Red Army was also a massive influence", and that he "wanted to give Yelena that Red Army robustness with her theme." Balfe avoided more cliché Russian instruments like balalaikas as they "didn't fit the film" and could "become a parody".