"Man Down" is a song by Barbadian singer Rihanna from her fifth studio album, "Loud" (2010).
 Singer Shontelle and production duo Rock City wrote the song with its main producer, Sham.
 They wrote it during a writing camp, in Los Angeles of March 2010, held by Rihanna's record label to gather compositions for possible inclusion on the then-untitled album.
 Rock City were inspired by Bob Marley's 1973 song "I Shot the Sheriff" and set out to create a song which embodied the same feel, but from a female perspective.
 "Man Down" is a reggae murder ballad which incorporates elements of ragga and electronic music.
 Lyrically, Rihanna is a fugitive after she shoots a man, an action she later regrets.
 Several critics singled out "Man Down" as "Loud"' s highlight, while others commented on her prominent West Indian accent and vocal agility.
Jenny Choi is an American singer and cellist, who founded the Asians in Rock tour, and is the lead singer of the two-piece Chicago band, Sanawon.
 For many years she performed solo at the University of Illinois at Urbana–Champaign (where she received her undergraduate degree) as well as with a back-up band.
 She also played synthesizer and sang lead and backing vocals in the short-lived Sweet Black And Blue, with Philip Stone on drums and Ben Weasel at guitar and microphone.
 She played cello on Mike Park's second album "North Hangook Falling", The Lawrence Arms fifth album "Oh!
 Calcutta!
" and the debut album "Four One Five Two" by their guitarist Chris McCaughan as part of his side project Sundowner, and contributed vocals to three songs on This Is Me Smiling's first album.
"Locked Away" is a song by Virgin Islands production duo Rock City featuring American singer Adam Levine, the lead singer of pop rock band Maroon 5.
 The song was released on June 29, 2015, by Kemosabe Records and RCA Records.
 The song peaked at number six on the "Billboard" Hot 100, making it the duo's first top ten hit and Levine's first single that he did not co-write.
Special Generation was an American new jack swing/urban R&B quintet that was the brainchild of M.C. Hammer.
 The group members are Lead singer Maquet Robinson, Kendrick Washington, Fernando Carter, Charles Salter and Maurice Dowdell.
 The group sang heart felt harmonic background vocals on several MC Hammers hit releases from the 90's (such as "U Can't Touch This", "Help the Children" and "Have You Seen Her"), before becoming major recording artists in their own right in early 1990.
 That same year, their debut album, "Take It To The Floor" which was released off of Hammer's Bust it / Capitol Records label, debuted their first song "Love me just for me " which climbed the charts with a bullet for 21 weeks and finally went gold, their debut album was released and did well in the music/recording industry due in part to the popular ballad "Love Me Just For Me" (peaked at #04 on the "Billboard" Hot 100 in December 1990) and a follow up mid-tempo R&B Top Ten Hit "Spark of Love".
 Special Generation went on in 1992 to release there sophomore album entitled "Butterflies" in which the group recorded hit singles with Troop member Steven Russell whom produced and sang on the album,
Adolf "Dado" Topić (born 4 September 1949, Siverić) is a rock musician from Croatia and the former Yugoslavia.
 He was the lead singer and founder of Time, a 1970s progressive rock band.
 From 1970 to late 1971, he was also the lead singer of the popular prog-rock band Korni Grupa (also known as The Kornelyans).
 He is a rock musician from Croatia and the former Yugoslavia.
 He was the lead singer and founder of Time, a 1970s progressive rock band.
 From 1970 to late 1971, he was also the lead singer of the popular prog-rock band Korni Grupa (also known as The Kornelyans).
 He is a male vocalist who sang the entry from Croatia in the Eurovision Song Contest 2007, together with the band Dragonfly.
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.
El Producto is the debut extended play (EP) by Australian electronic music group The Avalanches.
 It was released on 8 December 1997 via Wondergram Records and distributed by Shock Records.
 "El Producto" was the second release by the group and included their debut single, "Rock City", which had appeared on Trifekta Records two months prior.
 "Rock City" was the only single released from the EP, the band had "started performing widely and attracted a long term recording deal".
 Based on the EP's success, Steve Pavlovic, head of Wondergram Records, signed the group to his new Modular Recordings label in May 1998.
 They also signed with Rex Records for the exclusive United Kingdom four-track EP "Undersea Community", which appeared in March 1999.
 They released their full-length debut album, "Since I Left You", on Modular in November 2000.
"Rock City" is a song by American rapper Royce da 5'9", released as the third single from his debut album, "Rock City (Version 2.0)", which was released in 2002 through E1 Music (formerly "Koch Records") and Game Recordings, after another record label had turned down his first version of the album.
 The song also features vocals from rapper Eminem, becoming Eminem's debut appearance on one of Royce's solo albums.
 The single was released on January 5, 2002, the same date as its same titled album was released.
 "Rock City" charted at #99 on the Hot R&B/Hip-Hop Singles & Tracks chart in 2002.
 Not counting Bad Meets Evil or Slaughterhouse songs, "Rock City" is Royce da 5'9"'s most successful single chart-wise.
What Dreams Are Made Of is the debut album by production duo Rock City.
 It was released on October 9, 2015.
 The album includes "Locked Away", the single performed with Adam Levine that peaked at number one on the "Billboard" Mainstream Top 40 chart.
"Everything Reminds Me of You" is a pop/reggae fusion ballad by Jamaican recording artist Tessanne Chin, which she released as the second single from her major label debut album "Count on My Love".
 It is written by Rock City aka Planet VI and co-written by Tessanne while produced by Grammy Award-winning producer Supa Dups.
 Although it is the second single from the album behind "Tumbling Down", it serves as the album's lead single.

Question: What is the name of the lead singer who sang with rock city on their debut album?
Answer: Adam Levine