 The version of "Evergreen" during the recording studio scene is a  live recording, filmed in a single take. This was done at the  insistence of Barbra Streisand (qv): she hates doing lipsync work;  she wanted to be able to have closeups during the scene (which would  expose any flaws in lipsync); and she wanted a more "natural" feel  to that version (as evidenced by the kissing and laughing).  Kris Kristofferson (qv), however, was very reluctant about singing  live on screen, and had to be talked into it. A more formal studio  recording was used for the final credits and soundtrack album.