"The Way You Look Tonight" was a 20th century song from Earth. Vic Fontaine sang this song during the farewell party on Deep Space 9 for Worf, Odo and Miles O'Brien in 2375, who were all leaving the station. (DS9: "What You Leave Behind") The theme of the song played through the flashback sequences near the end of the episode. It was written by Dorothy Fields and Jerome Kern in 1936, originally performed by Fred Astaire. Among the artists who later covered it were Bing Crosby and Frank Sinatra.