Question: the singer of Goodnight Saigon was part of what?

full_context: Document 1: The Rolling Stones: The Rolling Stones are an English rock band formed in London, England in 1962. The first stable line - up consisted of Brian Jones (guitar, harmonica), Mick Jagger (lead vocals), Keith Richards (guitar, backing vocals), Bill Wyman (bass), Charlie Watts (drums), and Ian Stewart (piano). Stewart was removed from the official line - up in 1963 but continued as a touring member until his death in 1985. Jones left the band less than a month prior to his death in 1969, having already been replaced by Mick Taylor, who remained until 1974. After Taylor left the band, Ronnie Wood took his place in 1975 and has been on guitar in tandem with Richards ever since. Following Wyman's departure in 1993, Darryl Jones joined as their touring bassist. Touring keyboardists for the band have been Nicky Hopkins (1967 -- 1982), Ian McLagan (1978 -- 1981), Billy Preston (through the mid-1970s) and Chuck Leavell (1982 -- present). The band was first led by Brian Jones, but after developing into the band's songwriters, Jagger and Richards assumed leadership while Jones dealt with legal and personal troubles.
Document 2: It's Still Rock and Roll to Me: Billy Joel - vocals, piano and electric piano Dave Brown - electric guitar Richie Cannata - saxophone solo Liberty DeVitto - drums and percussion Russell Javors - electric guitar Doug Stegmeyer - bass guitar
Document 3: Still in Saigon: "Still in Saigon", is a song written by Dan Daley and performed by the Charlie Daniels Band and released on their 1982 album "Windows". It was written by Daley in May 1981.
Document 4: The Rolling Stones: The Rolling Stones are an English rock band formed in London, England in 1962. The first stable line - up consisted of Brian Jones (guitar, harmonica), Mick Jagger (lead vocals), Keith Richards (guitar, backing vocals), Bill Wyman (bass), Charlie Watts (drums), and Ian Stewart (piano). Stewart was removed from the official line - up in 1963 but continued as a touring member until his death in 1985. Jones left the band less than a month prior to his death in 1969, having already been replaced by Mick Taylor, who remained until 1974. After Taylor left the band, Ronnie Wood took his place in 1975 and has been on guitar in tandem with Richards ever since. Following Wyman's departure in 1993, Darryl Jones joined as their touring bassist. Touring keyboardists for the band have been Nicky Hopkins (1967 -- 1982), Ian McLagan (1978 -- 1981), Billy Preston (through the mid-1970s) and Chuck Leavell (1982 -- present). The band was first led by Brian Jones, but after teaming as the band's songwriters, Jagger and Richards assumed leadership while Jones dealt with legal and personal troubles.
Document 5: Goodnight Saigon: "Goodnight Saigon" is a song written by Billy Joel, originally appearing on his 1982 album "The Nylon Curtain", about the Vietnam War. It depicts the situation and attitude of United States Marines beginning with their military training on Parris Island and then into different aspects of Vietnam combat.
Document 6: Billy Don't Be a Hero: Because the song was released in 1974, it was associated by some listeners with the Vietnam War, though the war to which it actually refers is never identified in the lyrics. It has been suggested that the drum pattern, references to a marching band leading soldiers in blue, and ``riding out ''(cavalry) refer to the American Civil War. However the drum beat and cavalry`` riding out'' is not specific to the American Civil War, and blue uniforms were common in the 19th century. That being said, Paper Lace themselves performed the song on Top of the Pops wearing Union - style uniforms, as can be seen on Youtube.
Document 7: 22 Gia Long Street: 22 Gia Long Street, now 22 Lý Tự Trọng Street, is an apartment building in Ho Chi Minh City, then called Saigon, that became an icon of the Fall of Saigon when chosen as an assembly point for Operation Frequent Wind in 1975. A Dutch photographer, Hubert van Es, working for UPI, took a photograph that captured the chaotic final days of the Vietnam War, which many people believed showed desperate Americans crowding on to the roof of the United States Embassy to board a helicopter. The building in fact was an apartment building that housed employees of the United States Agency for International Development (USAID), with its top floor reserved for the Central Intelligence Agency's deputy chief of station.
Document 8: Billy Joel Band: The Billy Joel Band is the band that backs singer-songwriter and pianist Billy Joel on both studio and live recordings. The band stabilized around 1975 but underwent several lineup changes in the late 1980s and early 1990s. Joel's touring band as a whole did not begin playing on his records until he recorded the album "Turnstiles" in 1976. This line-up included Richie Cannata on saxophones and organ, Liberty DeVitto on drums, Russell Javors on guitar, and Doug Stegmeyer on bass.
Document 9: The Battle of New Orleans: "The Battle of New Orleans" is a song written by Jimmy Driftwood. The song describes the Battle of New Orleans from the perspective of an American soldier; the song tells the tale of the battle with a light tone and provides a rather comical version of what actually happened at the battle. It has been recorded by many artists, but the singer most often associated with this song is Johnny Horton. His version scored number 1 on the "Billboard" Hot 100 in 1959 (see 1959 in music). "Billboard" ranked it as the No. 1 song for 1959, it was very popular with teenagers in the late 50s/early 60s in an era mostly dominated by rock and roll music.
Document 10: Billy Joel: On December 1, 2007, Joel premiered his new song "Christmas in Fallujah". The song was performed by Cass Dillon, a new Long Island based musician, as Joel felt it should be sung by someone in a soldier's age range (though he himself has played the song occasionally in concert.) The track was dedicated to servicemen based in Iraq. Joel wrote it in September 2007 after reading numerous letters sent to him from American soldiers in Iraq. "Christmas in Fallujah" is only the second pop/rock song released by Joel since 1993's River of Dreams. Proceeds from the song benefited the Homes For Our Troops foundation.
Document 11: No Man's Land (Billy Joel song): "No Man's Land" is a single by Billy Joel. It was the third single from his 1993 album "River of Dreams". The song is about the growth of suburbia and its negative environmental and social aspects. It presumably refers somewhat specifically to Long Island (the line about "lots more to read about Lolita and suburban lust" is an indirect reference to Amy Fisher). It was the first song performed on "Late Show with David Letterman" in August 1993. In 2017, Joel performed the song in concert as part of the story line in the Thanksgiving episode of the sixth season of the TV series "Arrow".
Document 12: The Rolling Stones: The Rolling Stones are an English rock band formed in London, England in 1962. The first stable line - up consisted of Brian Jones (guitar, harmonica), Mick Jagger (lead vocals), Keith Richards (guitar, backing vocals), Bill Wyman (bass), Charlie Watts (drums), and Ian Stewart (piano). Stewart was removed from the official line - up in 1963 but continued as a touring member until his death in 1985. Jones left the band less than a month before his death in 1969, having already been replaced by Mick Taylor, who remained until 1974. After Taylor left the band, Ronnie Wood took his place in 1975 and has been on guitar in tandem with Richards ever since. Following Wyman's departure in 1993, Darryl Jones joined as their touring bassist. Touring keyboardists for the band have been Nicky Hopkins (1967 -- 1982), Ian McLagan (1978 -- 1981), Billy Preston (through the mid-1970s) and Chuck Leavell (1982 -- present). The band was first led by Brian Jones, but after developing into the band's songwriters, Jagger and Richards assumed leadership when Jones was dealing with personal troubles and legal issues.
Document 13: Miami 2017 (Seen the Lights Go Out on Broadway): "Miami 2017 (Seen the Lights Go Out on Broadway)" is a song written and originally recorded by Billy Joel which appeared as the final song on his album "Turnstiles" in 1976. Several live performances of the song have been released. He performed this song at benefit concerts: The Concert for New York City for victims of the September 11 attacks in 2001, on the television program "" for Hurricane Sandy victims in 2012 and during his set at "". Joel has often tweaked the lyrics to the song at his live concerts, particularly at the "Live at Shea" and "Coming Together" concerts. On New Year's Eve, 2016, Joel performed at the BB&T Center in Sunrise, Florida, a city just north of Miami Dade County. At midnight, he crooned the traditional Auld Lang Syne and then immediately went into "Miami 2017". On the January 9, 2017 episode of "The Late Show with Stephen Colbert", Billy Joel performed the song with Stay Human, the show's house band.
Document 14: The Bridge (Billy Joel album): The Bridge is the tenth studio album by American singer-songwriter Billy Joel, released on July 9, 1986. It was the last studio album produced by Phil Ramone as well as the last to feature Joel's long-time bassist Doug Stegmeyer and rhythm guitarist Russell Javors. The album yielded several successful singles, including "A Matter of Trust" (peaking at No. 10), "Modern Woman" (which also appeared on the "Ruthless People" soundtrack, peaking at No. 10), and "This Is the Time" (peaking at No. 18).
Document 15: Streetlife Serenade: Streetlife Serenade is the third studio album by American recording artist Billy Joel, released on October 11, 1974 by Columbia Records. The follow-up to his previous album "Piano Man" (1973), it was his last release until 1993's "River of Dreams" to be mostly recorded with session musicians, while Joel himself sang and played piano and other keyboards, although some of his backing musicians, guitarists Don Evans and Al Hertzberg, and banjo/pedal steel guitarist Tom Whitehorse played on the album. Joel also featured synthesizers for the first time, namely the Moog synthesizer.
ground_truth: Billy Joel Band
sub_queries: Goodnight Saigon >> performer Answer: Billy Joel
Billy Joel >> member of Answer: Billy Joel Band