Question: Who is  best known as songwriter, lead singer, and guitarist in the rock band the Moody Blues, Justin Hayward  or Joel Madden?

full_context: Document 1: Voices in the Sky: "Voices in the Sky" is a hit 1968 single by the progressive rock band The Moody Blues, and it was written by their lead guitarist Justin Hayward. It was released as a single in June 1968, with "Dr. Livingstone, I Presume" on the B-side. It was later released on their 1968 album "In Search of the Lost Chord", and was the first of two singles from that album, the other being "Ride My See-Saw".
Document 2: Joel Madden: Joel Rueben Madden (born Joel Rueben Combs; March 11, 1979) is the lead vocalist for the American pop punk band Good Charlotte, as well as a record producer, actor, DJ, and UNICEF Goodwill Ambassador. He is also part of the pop rock collaboration The Madden Brothers with his twin brother Benji Madden.
Document 3: Question (The Moody Blues song): "Question" is a 1970 single by the English progressive rock band The Moody Blues. It was written by guitarist Justin Hayward, who provides lead vocals. "Question" was first released as a single in April 1970 and remains their second highest charting song, reaching number two and staying on the chart for 12 weeks. It was later featured as the lead track on the 1970 album "A Question of Balance". The single also features the song "Candle of Life" on its B-side, which was from the Moody Blues' previous album "To Our Children's Children's Children".
Document 4: The Actor (The Moody Blues song): "The Actor" is a 1968 song by the progressive rock band, The Moody Blues. Written by band member Justin Hayward, it was first released on their 1968 album "In Search of the Lost Chord". "The Actor" is one of Justin Hayward's signature love ballads. The song's lyrics tell the story of a young woman who falls in love with an actor. However, this love is unrequited, since she only sees the actor once when "The Curtain rises." The song prominently features Justin Hayward singing along with an acoustic guitar. Ray Thomas is also prominently featured playing the flute behind Hayward's voice.
Document 5: Good Charlotte: Good Charlotte is an American rock band from Waldorf, Maryland, that formed in 1996. Since 1998, the band's constant members have been lead vocalist Joel Madden, lead guitarist and backing vocalist Benji Madden, bassist Paul Thomas, rhythm guitarist and keyboardist Billy Martin, while drummer Dean Butterworth has been a member of the band since 2005. After a four-year-long hiatus, the band announced its comeback on November 3, 2015. The band has released six studio albums: "Good Charlotte" (2000), "The Young and the Hopeless" (2002), "The Chronicles of Life and Death" (2004), "Good Morning Revival" (2007), "Cardiology" (2010) and "Youth Authority" (2016), as well as two compilations: "Greatest Remixes" (2008) and "Greatest Hits" (2010).
Document 6: David Gilmour: David Jon Gilmour, {'1': ", '2': ", '3': ", '4': "} (born 6 March 1946) is an English guitarist, singer and songwriter best known as a longtime member of the progressive rock band Pink Floyd. He joined group as guitarist and co-lead vocalist in 1968, effectively as a replacement for founder member Syd Barrett, who was dismissed from the band shortly afterwards.
Document 7: Classic Blue: Classic Blue is the fourth solo studio album by The Moody Blues member Justin Hayward. "Classic Blue" was released in 1989 by Trax Records (later re-released on Castle Music Records in 1994), and features Mike Batt, who also produced the album, and the London Philharmonic Orchestra. The album includes cover versions of many hit songs, such as The Beatles' "Blackbird", and Led Zeppelin's "Stairway to Heaven." It also includes a re-recorded version of "Forever Autumn," a song from "Jeff Wayne's Musical Version of The War of the Worlds", in which Hayward originally sang lead vocals.
Document 8: Your Wildest Dreams: "Your Wildest Dreams" is a 1986 single by the progressive rock band the Moody Blues, written by the band's lead singer, principal songwriter and lead guitarist Justin Hayward. The song was first released as a single, and later released on the Moody Blues' 1986 album "The Other Side of Life". It was a top-10 hit in the United States, peaking at #9, which had not happened to a Moody Blues song since "Nights in White Satin" in 1972. The song became an Adult Contemporary number-one hit, and charted at number two on the Mainstream Rock chart.
Document 9: Justin Hayward: Justin David Hayward (born 14 October 1946) is an English musician, best known as songwriter, lead singer, and guitarist in the rock band the Moody Blues.
Document 10: The Madden Brothers: The Madden Brothers are an American pop rock duo made up of brothers Joel Madden and Benji Madden, both of whom are also founding members of the rock band Good Charlotte.
Document 11: The Moody Blues: The Moody Blues are an English rock band formed in Birmingham in 1964. They first came to prominence playing rhythm and blues music, but their second album, "Days of Future Passed", which was released in 1967, was a fusion of rock with classical music and established them as pioneers in the development of art rock and progressive rock. It has been described as a "landmark" and "one of the first successful concept albums". They became known internationally with singles including "Go Now", "Nights in White Satin", "Tuesday Afternoon" and "Question". They have been awarded 18 platinum and gold discs. The Moody Blues have sold 70 million records worldwide.
Document 12: Adam Levine: Adam Noah Levine (born March 18, 1979) is an American singer, songwriter, multi-instrumentalist, actor, and record producer. He is the lead singer for the pop rock band Maroon 5.
Document 13: Benji Madden: Benjamin Levi "Benji" Madden (born Benjamin Levi Combs on March 11, 1979) is an American guitarist, vocalist, songwriter, and producer. He is the lead guitarist and backing vocalist for the band Good Charlotte, as well as pop rock collaboration The Madden Brothers. He formed both of these acts with his identical twin brother, Joel Madden. Benji is currently a coach on "The Voice Australia".
Document 14: Before — Volume One: Before — Volume One is a 2011 mixtape, presented by Complex, released by The Madden Brothers which consists of Joel Madden and Benji Madden, who are best known as the lead vocalist and guitarist, respectively, for the American pop punk band Good Charlotte. The Madden Brothers say that their "only real objective for doing this mixtape was to have fun and be creative". The tracks from the mixtape each feature at least one guest artist, except track 12, "A Million Tears (One Heart)".
Document 15: Greetings from California: Greetings from California is the debut studio album by The Madden Brothers, whose members consist of Joel and Benji Madden from pop punk band Good Charlotte, which was released on September 16, 2014 in the United States. The album's first single, "We Are Done", premiered on May 30, 2014 on 102.7 KIIS FM. The music video for the single premiered on June 30, 2014 and on July 7, 2014, "We Are Done" reached #1 on the Australian iTunes songs chart. The album was made available for pre-ordering on the iTunes Store on July 4, 2014 with "California Rain" made available for immediate download.
ground_truth: Justin David Hayward