A song by Frank Sinatra in 1958
"Saturday Night (Is the Loneliest Night of the Week)" is a popular song.
The music was written by Jule Styne, the lyrics by Sammy Cahn. The song was published in 1944.
The song is best known in a version by Frank Sinatra (recorded November 14, 1944, released by Columbia Records as catalog number 36762[1], with the flip side "I Dream of You (More than You Dream I Do)"), but has been recorded by a number of other artists, including Barry Manilow.