Question: Who was the lead singer of the manhattans?

Disambiguated questions and answers:
context: No context provided
question: Who was the original lead singer of the R&B group The Manhattans?
short_answers: George "Smitty" Smith
context: No context provided
question: Who was the leader singer of The Manhattans throughout the 1970s?
short_answers: Gerald Alston
context: The group continued until 1988. That year, Alston left to record as a solo artist, scoring with several major R&B hits in the late 1980s and early 1990s for Motown. Roger Harris was recruited as the new lead singer for the group, which moved to the new label, Valley Vue, when their Columbia recording contract expired.
question: Who was the lead singer of The Manhattans from 1988 to 1991?
short_answers: Roger Harris
wikipage: The Manhattans
context: The group's largest shake-up was in December 1990, when Blue Lovett left the group, upon his doctor's request, for health reasons. Kenny Kelley left to return to college to pursue his PhD. Bivins continued along with lead singer Roger Harris who had replaced Gerald Alston in 1988–89 along with new members. He recruited new members Charles Hardy and Harsey Hemphill, who in October 1990 had auditioned for Bivins but didn't come aboard until after Lovett and Kelly left at the end of 1990. In early 1991 Bivins added Alvin Pazant, bringing the group back to a quintet. Harris proved to be only a short-term lead, and in April 1991 he was replaced by Wade Taylor. Taylor was replaced in July 1991 when Bivins recruited Lee Williams, the person whom they had originally wanted to replace George Smith.
question: Who was the lead singer of the Manhattans from April to July 1991?
short_answers: Wade Taylor
wikipage: The Manhattans
context: The group's largest shake-up was in December 1990, when Blue Lovett left the group, upon his doctor's request, for health reasons. Kenny Kelley left to return to college to pursue his PhD. Bivins continued along with lead singer Roger Harris who had replaced Gerald Alston in 1988–89 along with new members. He recruited new members Charles Hardy and Harsey Hemphill, who in October 1990 had auditioned for Bivins but didn't come aboard until after Lovett and Kelly left at the end of 1990. In early 1991 Bivins added Alvin Pazant, bringing the group back to a quintet. Harris proved to be only a short-term lead, and in April 1991 he was replaced by Wade Taylor. Taylor was replaced in July 1991 when Bivins recruited Lee Williams, the person whom they had originally wanted to replace George Smith.
question: Who was the lead singer of The Manhattans from 1991 to 2015?
short_answers: Lee Williams
wikipage: The Manhattans
context: In the 2000s, there were two versions of The Manhattans. One version featured original founding member Bivins, plus Hardy, Hemphill, Pazant and Williams. They released the CD "Manhattans Now" in 1994. In 1996 the group formed their own full-service music corporation company called Manhattan Entertainment Inc. In 2003 and 2007 they were featured artists in two theater plays, "Girl He Aint Worth It" and "The Chicken Shack". In June 2013, the group released a single called "Just For Tonite" written by Bivins and Pazant and produced and arranged by Leroy Burgess. In 2015 Lee Williams retired and was replaced by Keni Jackson as the new lead singer. And they still continue to perform, with the same line up in 2018.
question: Who is the lead singer of The Manhattans since 2015?
short_answers: Keni Jackson
wikipage: The Manhattans

Long-form answers:
knowledge: content: The Manhattans are an American popular R&B vocal group. Their work "Kiss and Say Goodbye" recorded in 1976 and 1980's "Shining Star" both sold millions of copies.[1] The Manhattans have recorded 45 hits on the Billboard R&B Chart, including twelve Top 10 R&B hits in the United States, starting in 1965.[2] Sixteen of their songs have reached the Billboard Hot 100, including two Top 10s and a Number 1 hit with their song "Kiss and Say Goodbye". They also charted 8 U.S. R&B Top 20 Albums, three of which were R.I.A.A. certified gold.
wikipage: The Manhattans
content: The Manhattans, originally from Jersey City, New Jersey, formed in 1962[3] with members George "Smitty" Smith (born December 28, 1939, Florida; died December 16, 1970), Edward "Sonny" Bivins (born Edward Jessie Bivins, Jr., January 15, 1936, Macon, Georgia;[4] died December 3, 2014, Basking Ridge, Bernards Township, New Jersey), Winfred "Blue" Lovett (born Winfred Lorenzo Lovett, November 16, 1936, Jersey City; died December 9, 2014, Arizona),[5][6] Kenny "Wally" Kelly (born Kenneth Bernard Kelly, January 9, 1941, Jersey City; died February 17, 2015), and Richard "Ricky" Taylor (born in 1940; died December 7, 1987).
wikipage: The Manhattans
content: Misfortune hit the group late in 1970 when George Smith fell ill. With him unable to perform, the group began to search for a new lead. First they attempted to woo The Cymbals' lead, Lee Williams, but he was unwilling to leave his current group. The group then renewed their request to Gerald Alston (born November 8, 1951, North Carolina), who accepted and took over the lead spot.[3] Original lead singer George Smith died of a brain tumor on December 16, 1970, 12 days before his 31st birthday.
wikipage: The Manhattans
content: The group continued until 1988. That year, Alston left to record as a solo artist, scoring with several major R&B hits in the late 1980s and early 1990s for Motown. Roger Harris was recruited as the new lead singer for the group, which moved to the new label, Valley Vue, when their Columbia recording contract expired.
wikipage: The Manhattans
content: In early 1991 Bivins added Alvin Pazant, bringing the group back to a quintet. Harris proved to be only a short-term lead, and in April 1991 he was replaced by Wade Taylor. Taylor was replaced in July 1991 when Bivins recruited Lee Williams, the person whom they had originally wanted to replace George Smith.
wikipage: The Manhattans
content: In 2015 Lee Williams retired and was replaced by Keni Jackson as the new lead singer. And they still continue to perform, with the same line up in 2018.
wikipage: The Manhattans
long_answer: American R&B pop vocal group The Manhattans, originally from Jersey City, New Jersey, formed in 1962 with members George "Smitty" Smith, Edward "Sonny" Bivins, Winfred "Blue" Lovett, Kenny "Wally" Kelly, and Richard "Ricky" Taylor. Gerald Alston took over the lead spot of George Smith throughout the 1970s when Smith fell ill and died of a brain tumor on December 16, 1970, and he stayed with the group until 1988 when he left to record a solo album and Roger Harris took his place. In 1991, Wade Taylor ended up taking Roger Harris's place, who was quickly replaced with Lee Williams the same year. In 2015, Williams retired and was replaced by Keni Jackson.