Question: Who is  best known as songwriter, lead singer, and guitarist in the rock band the Moody Blues, Justin Hayward  or Joel Madden?
Context: "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. The Best of the Moody Blues is a compilation album by the progressive rock band The Moody Blues, released on 28 January 1997.  The album was also the Moody Blues' first compilation album to feature "Go Now", a song recorded in 1964 with then lead singer Denny Laine, who was replaced by Justin Hayward shortly after. "I Know You're Out There Somewhere" is a 1988 single by the progressive rock band The Moody Blues.  It was written by guitarist Justin Hayward, and it is the sequel to the Moody Blues' 1986 single "Your Wildest Dreams", also written by Hayward.  Following its release as a single in May 1988, it was included as the opening track of the 1988 album "Sur la Mer".  The single has a label time of 4:15, excising the instrumental bridge in the middle of the song, while the LP has a label time of 6:38. "Visions of Paradise" is a 1968 song by the progressive rock band The Moody Blues.  First released on their album "In Search of the Lost Chord", it was written jointly by band members Justin Hayward and Ray Thomas, and was the first of many collaborations between them.  The song is primarily led by Justin Hayward's voice and Ray Thomas's flute, with the lyrics describing the writer's perception of paradise. 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. "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. "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". "Blue World" is a 1983 single by The Moody Blues written by Justin Hayward.  It was first released as single in August 1983, and was later released on the album "The Present".  "Blue World" was one of three singles from "The Present", with the others being "Sitting at the Wheel" and "Running Water."  "Blue World" also referenced two earlier Moody Blues songs, "The Voice" and "Fly Me High".  "Blue World" was a moderate success for The Moody Blues in the U.S., charting at #32 on the Mainstream Rock chart, and at #62 on the "Billboard" Hot 100 chart.  In the UK it reached #35, proving to be their first UK Top 40 hit in ten years, barring a reissue of Nights in White Satin, and remains their last there to date.  The single's cover is the painting "Daybreak" by Maxfield Parrish. 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. "Never Comes the Day" is a 1969 single by the progressive rock band The Moody Blues.  It was written by band member Justin Hayward, and was the only single released from their 1969 album "On the Threshold of a Dream".  The song was edited from the album version of 4:43 down to 2:42.  The single edit omits the second verse and simply goes into the longer chorus after the first verse.  A similar edit was done on the Justin Hayward/John Lodge (Blue Jays) song "I Dreamed Last Night", but that version ends cold.  Despite the fact that the album was a number-one hit in the UK, "Never Comes the Day" was a commercial flop as a single, and did not chart in the UK.  The single also included Mike Pinder's "So Deep Within You," another track from the same album, on the B-side.
Answer: Justin David Hayward