Question: Who wrote the song which was ahead of "Purple Rain on the charts in 1984?

Context articles: Wake Me Up Before You Go-Go
Music from Songwriter
Let's Go Crazy
Purple Rain Tour
Computer Blue
Purple Rain (film)
Purple Rain (song)
When Doves Cry
Purple Rain (drink)
Purple Reign

"Wake Me Up Before You Go-Go" is a song by the British duo Wham!
, first released as a single in the UK on 14 May 1984.
 It became their first UK and US number one hit.
 It was written and produced by George Michael.
 The single was certified Platinum in the US, which at the time commemorated sales of over two million copies.
Music from Songwriter is a soundtrack album by Kris Kristofferson and Willie Nelson, released on Columbia Records in 1984 (see 1984 in music).
 It is the soundtrack to "Songwriter", a film starring the two performers.
 Two of the songs on the record are duets, five are sung by Nelson and four by Kristofferson.
 "How Do You Feel About Foolin' Around" was released as a single and reached the country charts, and the album itself was nominated for an Academy Award, losing to "Purple Rain".
"Let's Go Crazy" is a 1984 song by Prince and The Revolution, from the album "Purple Rain".
 It was the opening track on both the album and the film "Purple Rain".
 "Let's Go Crazy" was one of Prince's most popular songs, and was a staple for concert performances, often segueing into other hits.
 When released as a single, the song became Prince's second number-one hit on the "Billboard" Hot 100, and also topped the two component charts, the Hot R&B/Hip-Hop Songs and Hot Dance Club Play charts, as well as becoming a UK Top 10 hit.
 The B-side was the lyrically controversial "Erotic City".
 In the UK, the song was released as a double A-side with "Take Me with U".
The Purple Rain Tour was the fifth concert tour by American recording artist Prince and The Revolution following up on the success of his sixth studio album "Purple Rain" and his 1984 film "Purple Rain".
 According to "Spin", the tour sold over 1.7 million tickets.
"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 a piano instrumental written by Nelson and Prince.
 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.
 On the box-set "Purple Rain Deluxe" (2017) a different and longer recording of "Father's Song" is included.
Purple Rain is a 1984 American rock musical drama film directed by Albert Magnoli, written by Magnoli and William Blinn, and produced by Robert Cavallo, Joseph Ruffalo and Steven Fargnoli.
 The film stars Prince in his acting debut playing "The Kid," a quasi-biographical character.
 "Purple Rain" was developed to showcase Prince's talents and contains several concert sequences.
"Purple Rain" is a song by Prince and The Revolution.
 It is the title track from the 1984 album of the same name, which in turn is the soundtrack album for the 1984 film of the same name, and was released as the third single from that album.
 The song is a combination of rock, R&B, gospel, and orchestral music.
 It reached number 2 in the United States for two weeks, behind "Wake Me Up Before You Go-Go" by Wham!
, and it is considered to be one of Prince's signature songs.
"When Doves Cry" is a song by American musician Prince, and the lead single from his 1984 album "Purple Rain".
 It was a worldwide hit, and his first American number one single, topping the charts for five weeks.
 According to "Billboard" magazine, it was the top-selling single of the year.
 It was certified platinum by the Recording Industry Association of America, shipping two million units in the United States.
 It was the last single released by a solo artist to receive such certification before the certification requirements were lowered in 1989.
The Purple Rain refers to at least two popular mixed drinks.
 The more common is a variation on the highball Long Island Iced Tea, substituting Chambord for Triple Sec and a lemon-lime soda for the cola.
 The other is a long cocktail made from vodka, lemonade, blue Curaçao and grenadine.
 The name of this version originates from the appearance of the drink as the grenadine is added as the final ingredient, since the sinking of the red grenadine through the blue of the other ingredients creates the impression of purple rain.
 This drink has many versions depending on where it is made.
Purple Reign is a mixtape by American rapper Future, hosted and executive-produced by DJ Esco and Metro Boomin.
 It was released on January 17, 2016 with an 11-hour notice via LiveMixtapes and DatPiff.
 It is Future's first non-commercial mixtape since the mixtape trilogy "Monster" (2014), "Beast Mode" and "56 Nights" (2015).
 "Purple Reign" follows the commercial collaborative mixtape "What a Time to Be Alive" with Canadian rapper Drake.
 The mixtape features production from frequent collaborators Metro Boomin, Southside, Zaytoven, DJ Spinz and Nard & B, among others.
 The cover font is a tribute to Prince's landmark 1984 album "Purple Rain", which is stylized in the same fashion.