The pair sang "Lost Inside of You." Streisand played Esther Hoffman Howard in the 1976 movie, and Kristofferson played John Norman Howard. The film was last remade in 2018, starring Bradley Cooper and Lady Gaga. Their performance of "Shallow" electrified the 2019 Academy Awards, and Gaga took home the Oscar for best original song.
Streisand also sang "The Way We Were" with Lionel Richie.