Question: Which singer/songwriter was older, Gwen Stefani or Freddie Mercury?

full_context: Document 1: Too Much Love Will Kill You: "Too Much Love Will Kill You" is a song written by British guitarist Brian May of Queen, Frank Musker, and Elizabeth Lamers. The song reflected the breakdown of May's first marriage and attraction to his future wife, Anita Dobson. It was first recorded by Queen around 1988 or before, and was intended to be on the band's "The Miracle" album in 1989, but did not make the cut due to legal disputes following the band's decision that all songs on the album would be written by the group as opposed to individuals. After Freddie Mercury's death in 1991, May arranged a solo version, which he performed at the Freddie Mercury Tribute Concert in 1992, and subsequently included on his solo album "Back to the Light" that same year. Released as a single, it reached No. 5 on the UK Singles Chart. Because it was first played publicly at The Freddie Mercury Tribute Concert, a common misconception is that it was written as a tribute to Freddie Mercury, although it had actually been written several years before he died.
Document 2: Wind It Up (Gwen Stefani song): "Wind It Up" is a song by American singer and songwriter Gwen Stefani. Originally written for inclusion on Stefani's Harajuku Lovers Tour, the song was later recorded for her second solo studio album, "The Sweet Escape" (2006). The track contains an interpolation of "The Sound of Music" song "The Lonely Goatherd".
Document 3: Crazy Little Thing Called Love: "Crazy Little Thing Called Love" is a song by the British rock band Queen. Written by Freddie Mercury in 1979, the track is featured on their 1980 album "The Game", and also appears on the band's compilation album, "Greatest Hits" in 1981. The song peaked at number two in the UK Singles Chart in 1979, and became the group's first number-one single on the "Billboard" Hot 100 in the US in 1980, remaining there for four consecutive weeks. It topped the Australian ARIA Charts for seven weeks.
Document 4: This Is What the Truth Feels Like: This Is What the Truth Feels Like is the third studio album recorded by American singer and songwriter Gwen Stefani. It was released on March 18, 2016 by Interscope Records. Initially, the album was scheduled to be released in December 2014 with Stefani working with a handful of high-profile producers, and Benny Blanco serving as executive producer. However, after the underperformance of her 2014 singles and the writer's block Stefani suffered, she did not feel comfortable curating an album and scrapped the whole record in favor of starting again. The album's release was scheduled after Stefani hinted at it on her Twitter account.
Document 5: Gwen Stefani: Gwen Renée Stefani ( ; born October 3, 1969) is an American singer, songwriter, fashion designer, actress, and television personality. She is a co-founder and the lead vocalist of the band No Doubt that experienced major success after their breakthrough studio album "Tragic Kingdom" (1995) along with various successful singles, including "Just a Girl", "Don't Speak", "Hey Baby", and "It's My Life". During the band's hiatus, Stefani embarked on a solo pop career in 2004 by releasing her debut studio album "Love. Angel. Music. Baby." Inspired by pop music from the 1980s, the album was met with both critical and commercial success. It spawned three commercially successful singles: "What You Waiting For?", "Rich Girl", and "Hollaback Girl", the latter reached number one on the "Billboard" Hot 100 while also becoming the first US download to sell one million copies. In 2006 Stefani released her second studio album "The Sweet Escape". The album produced two successful singles: "Wind It Up" and the album's title track "The Sweet Escape". Her third solo album "This Is What the Truth Feels Like" was released in March 2016 and became her first solo number-one album on the "Billboard" 200.
Document 6: L.A.M.B.: L.A.M.B. was a fashion line by American singer Gwen Stefani, the lead vocalist of the rock band No Doubt. The line manufactured apparel and fashion accessories. It was founded in 2003 and made its runway debut in 2004. The fashion line manufactured accessories like shoes, watches, bags and a fragrance called "L." The name is an acronym of her debut solo album "Love. Angel. Music. Baby".
Document 7: The Freddie Mercury Album: The Freddie Mercury Album is a posthumous solo project with material from Queen frontman and vocalist Freddie Mercury released in 1992, to observe the anniversary of his death. The album is mainly made up of remixes from his past releases, as well as the original versions of "Barcelona", "Love Kills", "Exercises in Free Love", and "The Great Pretender". A week later, The Great Pretender, its US counterpart, was released.
Document 8: List of songs recorded by Gwen Stefani: American singer and songwriter Gwen Stefani has recorded material for three studio albums and one extended play (EP), and has been featured on songs on other artists' respective albums. After releasing five studio albums with ska punk group No Doubt, in 2004 Stefani began work as a solo artist, developing her pop debut "Love. Angel. Music. Baby." in the same year. It produced several top ten singles worldwide, including "What You Waiting For?", "Rich Girl", and "Hollaback Girl", the latter of which was the first single to sell over a million digital copies in the United States. The record contained work from a variety of producers and songwriters, including Linda Perry, Nellee Hooper, André 3000, and No Doubt bandmate Tony Kanal. "Cool", "Luxurious", and "Crash" were also released as the singles. In 2005, Stefani released an extended play "Love. Angel. Music. Baby. (The Remixes)" and included the Richard X remix of "Cool", which topped the United States Dance Club Songs in November 2005. Hip hop musician André 3000 made two appearances on the album, including on "Long Way to Go", and his alter ego "Johnny Vulture" on "Bubble Pop Electric".
Document 9: Lover of Life, Singer of Songs: Lover of Life, Singer of Songs (with the subtitle "The Very Best of Freddie Mercury Solo") is a compilation album of Freddie Mercury's solo songs. It was released (except in the U.S.) on 4 September 2006, the day before Mercury's 60th Birthday. It was released on 21 November 2006 in the U.S, three days before the 15th anniversary of Mercury's death.
Document 10: Freddie Mercury: The Great Pretender: Freddie Mercury: The Great Pretender is an Emmy/Rose d'Or award winning 2012 feature-length documentary about Queen singer Freddie Mercury and his attempt to forge a solo career. The documentary premiered on BBC One in edited form as part of the Imagine series, and later the Director's Cut was shown on BBC Four. It gained 3.5 million viewers when aired on BBC One in October 2012 and a further 1.2 million when shown on BBC Four.
Document 11: Queen discography: Queen are a British rock band, which consisted of vocalist Freddie Mercury (d. 1991), guitarist Brian May, bassist John Deacon, and drummer Roger Taylor. Founded in 1970, Queen released their self-titled debut album in 1973. Despite not being an immediate success, Queen gained popularity in Britain with their second self-titled album in 1974. Their 1975 single, "Bohemian Rhapsody", was number 1 for nine weeks (and a further five weeks in 1991) and is the third biggest selling single of all time in the UK. The band's 1981 "Greatest Hits" album is the biggest selling album in UK history with 6.0 million copies sold by 2014. The band's 1991 compilation "Greatest Hits II" is also one of the UK's top ten biggest sellers of all time, with 3.8 million copies sold by 2012.
Document 12: What You Waiting For?: "What You Waiting For?" is a song by American singer Gwen Stefani from her debut solo studio album, "Love. Angel. Music. Baby." (2004). Written by Stefani and Linda Perry, the song is the album's opening track and was released as Stefani's debut solo single. "What You Waiting For?" details Stefani's lack of inspiration, fear of producing the album, as well as her reaction to pressures exerted by her record label. It is primarily an electropop song and introduces Stefani's four back-up dancers, the Harajuku Girls, who had a major input into the album's production.
Document 13: Freddie Mercury: Farrokh "Freddie" Mercury (born Bulsara; 5 September 1946 – 24 November 1991) was a British singer, songwriter and record producer, known as the lead vocalist of the rock band Queen. He was known for his flamboyant stage persona and four-octave vocal range. Mercury wrote numerous hits for Queen, including "Bohemian Rhapsody", "Killer Queen", "Somebody to Love", "Don't Stop Me Now", "Crazy Little Thing Called Love", and "We Are the Champions". He led a solo career while performing with Queen, and occasionally served as a producer and guest musician for other artists.
Document 14: The Sweet Escape (song): "The Sweet Escape" is a song by American singer and songwriter Gwen Stefani from her second studio album of the same name (2006). It was written by Stefani, Akon, and Giorgio Tuinfort. Akon, who is also a featured artist, developed the song's beat before collaborating with Stefani. He designed it based on her previous work with No Doubt, and Stefani later commented that it put her "on the yellow brick road to the No Doubt record I might do". "The Sweet Escape" is an apology for a fight between two lovers and describes a dream of a pleasant life for them. As the album's title track, its title was chosen to help market Stefani's music and fashion lines.
Document 15: Queen (Queen album): Queen is the eponymous debut studio album by the British rock band Queen, released on 13 July 1973 by EMI Records in the UK and by Elektra Records in the US. It was recorded at Trident Studios and De Lane Lea Music Centre, London, with production by Roy Thomas Baker (as Roy Baker), John Anthony and Queen. The album was influenced by the hard rock, progressive rock and heavy metal of the time and covers subjects such as folklore ("My Fairy King") and religion ("Jesus"). Lead singer Freddie Mercury composed five of the ten tracks, guitarist Brian May composed four songs, (including "Doing All Right", which was co-written by then Smile band-mate Tim Staffell), and drummer Roger Taylor composed and sang "Modern Times Rock and Roll". The final song on the album is a short instrumental version of "Seven Seas of Rhye".
ground_truth: Farrokh "Freddie" Mercury