Question: What is the name of the song recorded by Rihanna that was written by Rock City?
Context: The discography of Rock City (also known as R. City and Planet VI)—a songwriting and record production duo from Saint Thomas, U.S. Virgin Islands—consists of one studio album, 16 mixtapes, eight singles (including four as a featured artist) and 21 music videos. Rock City is primarily known for their songwriting and production, having written or produced songs such as "Pour It Up" by Rihanna, "Replay" by Iyaz, "Bow Down/I Been On" by Beyoncé and "We Can't Stop" by Miley Cyrus.  Many albums that Rock City has contributed to have won or been nominated for Grammy Awards.  For instance, the duo wrote "If This Isn't Love" on Jennifer Hudson's Grammy Award-winning self-titled album. "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. "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. Live at Rock City - Bootleg Series Volume 2 is the second album released in British rock band Enter Shikari's live bootleg series.  The album was released in 2010, and was recorded at Nottingham's Rock City during their tour of their previous studio album "Common Dreads", released in 2009. "I'm Out" is a song recorded by American recording artist Ciara, for her eponymously titled fifth studio album (2013), featuring guest vocals from Trinidadian rapper Nicki Minaj.  It was written by Ciara, Minaj and Rock City brothers, Timothy and Theron Thomas.  Rocky City and The Co-Captains provided production.  "I'm Out" made its premiere on May 22, 2013 on Ciara's official SoundCloud account and was serviced to urban radio in the United States on June 3, 2013 as the second single from "Ciara" through Epic Records.  Lyrically, it incorporates themes of breakups and making an ex-boyfriend regret leaving. "Roc Me Out" is a song recorded by Barbadian recording artist Rihanna for her sixth studio album "Talk That Talk" (2011).  It was written by Ester Dean, Robert Swire, Gareth McGrillen, Mikkel S. Eriksen and Tor Erik Hermansen.  The track was produced by StarGate (Eriksen and Hermansen) and Knife Party (Swire and McGrillen).  "Roc Me Out" is a synthpop-influenced R&B song reminiscent of Rihanna's previous singles "Rude Boy" and "S&M".  It is set in "chugging" tempo and features heavy synths, "contagious" hooks and West Indian nuances.  Lyrically, the song features Rihanna sexually seducing her lover, while revealing her "nasty secrets".  Contemporary music critics were divided in their reviews of "Roc Me Out"; some of them labeled the song as a highlight on the album, while others criticized its similarity to Rihanna's previous singles.  Upon the release of "Talk That Talk", the song debuted on the lower regions of the singles charts in South Korea and the United Kingdom at number 73 and 176 respectively. "Cold Case Love" is a song recorded by Barbadian singer Rihanna for her fourth studio album, "Rated R" (2009).  It was written and produced by The Y's (Justin Timberlake, Robin Tadross and James Fauntleroy II).  Following Chris Brown's assault on Rihanna, she started working on the sound of her new album.  Timberlake who co-wrote "Cold Case Love" labeled the sound of Rihanna's new project as a step forward for the singer.  In February 2010, Rihanna admitted that the song's lyrics are about her complicated relationship with Brown. "Phresh Out the Runway" (also known as "Fresh Off the Runway") is a song recorded by Barbadian recording artist Rihanna for her seventh studio album "Unapologetic" (2012).  It was co-written by Rihanna with French disc-jockey David Guetta, Giorgio Tuinfort and Terius Nash.  It is the first time that Rihanna and Guetta had collaborated since "Who's That Chick? ", released in November 2010.  "Phresh Out the Runway" is a hip hop and rave song that contains heavy synthesizers and bass.  Lyrically, Rihanna explains how if any of her crew does not respect her, they should no longer remain with her. "Talk That Talk" is a song recorded by Barbadian singer Rihanna for her 2011 studio album of the same name.  It features a rap verse by American rapper Jay-Z, who had previously collaborated with Rihanna on her song "Umbrella" in 2007 and "Run This Town" in 2009.  The song was written by Jay-Z, Ester Dean, Christopher Wallace, Anthony Best, Sean Combs, and Chucky Thompson together with the Norwegian production duo StarGate.  Def Jam Recordings serviced the track to urban radio in the United States on January 17, 2012, as the third single from "Talk That Talk".  It was released in France as a CD single on March 26.  "Talk That Talk" is a hip hop song with R&B beats, rough drums and unrefined synths, and has a similar style to Rihanna's 2010 single "Rude Boy". "Pour It Up" is a song by Barbadian recording artist Rihanna from her seventh studio album, "Unapologetic" (2012).  It was serviced to urban radio stations in the United States on January 8, 2013, as the second US single, and third overall single from the album.  It was later also sent to contemporary hit radio radios in the country.  "Pour It Up" was co-written by Rock City and co-written and produced by Michael Williams and co-produced by J-Bo.  It is a club and trap song with a minimal hip hop beat.  Rihanna brags about her wealth, which serves as both a strip club anthem and a declaration of independence.
Answer: Pour It Up