To the surprise and glee of his associates, Brian emerged near the end of the sessions to aid Carl and engineer Stephen Desper in the completion of the coda. As Desper recalled, "Brian didn't want to work on 'Surf's Up'. But after three days of coaxing, and of him walking in and out of the studio, he was finally convinced to do a part." Brian contributed the song's final lyric, "A children's song / and we listen as they play, their song is love / and the children know the way". With the song completed, "Landlocked" was given the new title of "Surf's Up". The occasion marked the last time the group reworked material that was originally written for "Smile".