Question: What No. 5 song for 1988 was covered by Luna?
Context: "Sweet Child o' Mine" is a song by the American rock band Guns N' Roses, featured on their debut album, "Appetite for Destruction" (1987).  Released in August 1988 as the album's third single, the song topped the "Billboard" Hot 100 chart, becoming the band's first and only number-one single in the U.S..  "Billboard" ranked it as the No. 5 song for 1988.  It reached number six on the UK Singles Chart, when re-released in 1989. "Kiss You All Over" is a 1978 song performed by the group Exile.  It was written by Mike Chapman and Nicky Chinn.  It was included on the band's album "Mixed Emotions", and it featured Jimmy Stokley and guitarist JP Pennington on lead vocals.  It was a number one single in the United States, but proved to be Exile's only big hit in the pop rock market (they would later have great success on the country music charts).  It held the Number One spot on the Billboard Hot 100 for four weeks (starting September 30), and "Billboard" ranked it as the No. 5 song for 1978.  In the United Kingdom, the song was released on Mickie Most's RAK Records, and it peaked at number 6 in the UK Singles Chart.  In this song, a string synthesizer is used.  In 2010, "Billboard" ranked the song ninth on its list of "The 50 Sexiest Songs Of All Time". "Our God" is a song written by Chris Tomlin, Jesse Reeves, Jonas Myrin, and Matt Redman.  The track was originally included on "", a live record from Passion 10, the 2010 gathering of the Passion Conferences.  It was released as a single and spent 10 weeks as #1 on Billboard Christian charts.  The song is also the opening track on Tomlin's album "And If Our God Is For Us..." (2010) by CCM.  At the 2011 Dove Awards, Tomlin was nominated for Song of the Year, and won Worship Song of the Year for "Our God".  Tomlin also performed the song at the awards ceremony.  That same year, "And If Our God Is For Us..." was nominated in the category of Top Christian Album, the song won the title of Top Christian Song, and Tomlin won Top Christian Artist at the Billboard Music Awards.  "Our God" is the #5 song on CCLI's Top 25 Songs. "Dancing Machine" is a song recorded by American R&B outfit The Jackson 5, released as a single in 1974.  The group's first US Top Ten hit since 1971's "Sugar Daddy", "Dancing Machine" hit #1 in Cash Box and reached #2 on the "Billboard" Hot 100.  In addition, it hit #1 on the R&B charts.  "Billboard" ranked it as the No. 5 song for 1974.  It brought The Jackson 5 their second Grammy Award nomination in 1975 for Best R&B Performance by a Duo or Group with Vocals, losing to Rufus and Chaka Khan's "Tell Me Something Good". The Days of Our Nights is the fifth album by American alternative rock band Luna, currently out of print in the United States.  It includes a cover of the Guns N' Roses hit "Sweet Child o' Mine". "Patricia" is a popular song with music by Pérez Prado and lyrics by Bob Marcus, published in 1958.  The song is best known in an instrumental version by Prado's orchestra that became the last record to ascend to No.1 on the "Billboard" Jockeys and Top 100 charts, both of which gave way the next week to the then newly-introduced "Billboard" Hot 100 chart.  The song was also No. 1 on the R&B Best Sellers for two weeks.  It became a gold record.  "Billboard" ranked it as the No. 5 song for 1958. "Your Love" is a song by contemporary Christian musician Brandon Heath from his third album, "Leaving Eden".  It was released on September 14, 2010 as the first single from the album.  This song achieved the No. 1 spot on the Christian Songs Chart on January 22, 2011, and was on the chart for 27 weeks.  In addition, the song got to No. 20 on the Heatseekers Songs Chart on February 5, 2011, and was on the chart for three weeks.  This song was the No. 5 song of the year on the Christian Songs chart.  "Your Love" is nominated for Best Contemporary Christian Music Song at the 54th Grammy Awards. "Reunited" was a hit song for R&B vocal duo Peaches & Herb.  As the second single release from their 1978 album, "2 Hot", the song was a huge crossover smash, topping both the pop and soul charts.  It spent four weeks at number one on both the R&B singles chart and the "Billboard" Hot 100 singles chart in 1979 and sold over 2 million copies.  "Billboard" ranked it as the No. 5 song for 1979.  In Canada, "Reunited" likewise reached number one and was the No. 9 song for the year. "American Pie" is a song by American folk rock singer and songwriter Don McLean.  Recorded and released on the "American Pie" album in 1971, the single was a number-one US hit for four weeks in 1972.  In the UK, the single reached No. 2 on its original 1972 release and a reissue in 1991 reached No. 12.  The song was listed as the No. 5 song on the RIAA project Songs of the Century.  A truncated version of the song was covered by Madonna in 2000 and reached No. 1 in several countries, including the United Kingdom, Canada and Australia. "Heard 'Em Say" is a song by American hip-hop artist Kanye West.  It was released on November 8, 2005 as the third single for his second studio album, "Late Registration".  The song features Maroon 5 lead singer Adam Levine, who sings the chorus and bridge.  West co-produced the track with Jon Brion, and it contains excerpts from "Someone That I Used to Love" as performed by Natalie Cole.  The song was met by acclaim from contemporary music critics and is often seen as one of West's best.  The refrain of "Heard 'Em Say" was later recycled for the Maroon 5 song "Nothing Lasts Forever" which appears on their 2007 album "It Won't Be Soon Before Long".
Answer: Sweet Child o' Mine