Computer Blue

"Computer Blue" is the fourth track on Prince and The Revolution's soundtrack album, Purple Rain. In the film, the song represents Prince's angst at the budding relationship between the characters played by Morris Day and Apollonia. The song was composed by Prince, with credit to his father, John L. Nelson for the guitar solo based on an untitled piano piece by Nelson. Prince titled the piece "Father's Song" and recorded it on piano for the film, though on screen it was portrayed as being played by Prince's on-screen father, actor Clarence Williams III.

"Computer Blue" was originally recorded at Sunset Sound in Los Angeles in early September 1983. Prince along with Wendy & Lisa and sound engineer Susan Rogers set about recording what would later end up being placed on the album Purple Rain, albeit in a very heavily edited form.

The song begins with spoken lyrics by Wendy & Lisa which suggest a dominatrix-type relationship. The song then becomes a very guitar-oriented number with rock music screams. The released version only has one verse. The version of the song that debuted at the First Avenue nightclub in Minneapolis, Minnesota had a second verse, as did the song as it was originally recorded.