Question: What Barbadian singer recorded the song “Wait Your Turn” for her 2009 album Rated R released by Def Jam Recordings?
Context: Barbadian singer Rihanna has recorded material for her eight studio albums and has collaborated with other artists for duets and featured songs on their respective albums and charity singles.  After signing a record contract with the Def Jam Recordings in February 2005, Rihanna began to work with producers Carl Sturken and Evan Rogers, who co-wrote and co-produced 12 out of the 15 songs on her 2005 debut album, "Music of the Sun".  Award-winning songwriter Diane Warren co-wrote the title track, while Grammy Award-winning singer-songwriter Deniece Williams co-wrote the song "Willing to Wait".  Sturken and Rogers co-wrote and co-produced 9 songs out of 16 on Rihanna's 2006 album "A Girl like Me".  The album's lead single "SOS" was written by Evan "Kidd" Bogart and J. R. Rotem.  It contains a sped-up sample of "Tainted Love", written in 1965 by Ed Cobb, who was credited as a co-writer on "SOS". Rated R: Remixed (stylized as Rated R /// Remixed) is the second remix album by Barbadian singer Rihanna.  It was released on May 8, 2010, in Brazil and Europe and on May 24, 2010, in the United States by Def Jam Recordings.  It contains remixes from her fourth studio album, "Rated R" (2009).  The songs were solely remixed by Chew Fu.  The majority of the remixes were remastered to incorporate influences from the genre of house music, and incorporate heavy usage of synthesizers as part of their instrumentation. Unapologetic is the seventh studio album by Barbadian singer Rihanna.  It was released on November 19, 2012, by Def Jam Recordings and SRP Records.  It was recorded between June and November 2012, during promotion of her sixth album, "Talk That Talk" (2011).  As executive producer, Rihanna enlisted previous collaborators The-Dream, David Guetta, Chase & Status, and StarGate to work alongside new collaborators such as Parker Ighile, Mike Will Made-It, and Labrinth.  "Unapologetic" is mainly a pop, dubstep and R&B album that incorporates elements of hip hop, EDM and reggae in its production, similar to the sound of her previous albums "Talk That Talk" and "Rated R" (2009). "Rude Boy" is a song by Barbadian singer Rihanna, taken from her fourth studio album, "Rated R" (2009).  It was released as the album's third single on February 19, 2010, through Def Jam.  Rihanna co-wrote the song with StarGate, Ester Dean, Makeba Riddick, and Rob Swire, with Swire also co-producing it with StarGate.  "Rude Boy" is an up-tempo dancehall and R&B song which incorporates elements of raggamuffin.  The song received mixed to positive reviews from critics; some called it is the highlight of the album, but others criticized Rihanna's "monotone" and "icy" vocal performance. "Hard" is a song by Barbadian recording artist Rihanna from her fourth studio album, "Rated R" (2009).  The song features a guest verse from American rapper Young Jeezy, credited only as "Jeezy" on the album.  The artists co-wrote the song with its producers, The-Dream and Tricky Stewart.  "Hard" was sent to radio by Def Jam Recordings on November 10, 2009, as the second United States single from "Rated R".  It is a hip hop song and features military horns, hissing synthesizers, sharp beats and piano chords. "Russian Roulette" is a song recorded by Barbadian singer Rihanna for her fourth studio album, "Rated R" (2009).  It premiered on radio stations worldwide on October 20, 2009 and was released as the album's lead single on October 27 through Def Jam Recordings.  Written and produced by Ne-Yo and Chuck Harmony, "Russian Roulette" is a pop and R&B ballad that contains dark, morbid, and tense atmospheric elements in its composition.  Lyrically, the single is about an abusive romantic relationship that ended abruptly.  Music critics noted the lyrical theme as a response to the domestic violence case between Rihanna and her then-boyfriend, singer Chris Brown. "Wait Your Turn" is a song recorded by Barbadian singer Rihanna for her fourth studio album, "Rated R" (2009).  It was written by Mikkel S. Eriksen, Tor Erik Hermansen, Saul Milton, Will Kennard, James Fauntleroy II, Takura Tendayi, and Rihanna herself.  Stargate (Eriksen and Hermansen) and Chase & Status (Milton and Kennard) produced the song.  "Wait Your Turn" was released on November 13, 2009 as the second international and third overall single from "Rated R". Music of the Sun is the debut studio album by Barbadian singer Rihanna.  It was released on August 30, 2005 in the United States through Def Jam Recordings.  Prior to signing with Def Jam, Rihanna was discovered by record producer Evan Rogers in Barbados, who helped Rihanna record demo tapes to send out to several record labels.  Jay-Z, the former chief executive officer (CEO) and president of Def Jam, was given Rihanna's demo by Jay Brown, his A&R at Def Jam, and invited her to audition for the label after hearing what turned out to be her first single, "Pon de Replay".  She auditioned for Jay-Z and L.A. Reid, the former CEO and president of record label group The Island Def Jam Music Group, and was signed on the spot to prevent her from signing with another record label. Rated R is the fourth studio album by Barbadian singer Rihanna.  It was released on November 20, 2009 by Def Jam Recordings and SRP Records.  Recording sessions for the album began in April 2009 and took place at several recording studios throughout United States and Europe.  Rihanna, together with Antonio "L.A." Reid and The Carter Administration, was the executive producer of the album and worked with various record producers, including Chase & Status, StarGate, The-Dream, Ne-Yo, and Brian Kennedy.  The record featured several vocalists and instrumentalists, including Young Jeezy, will.i.am, Justin Timberlake and Slash, who played the guitars in "Rockstar 101". "Pon de Replay" is the debut single recorded by Barbadian singer Rihanna, from her debut studio album "Music of the Sun" (2005).  It was written and produced by Vada Nobles, Alisha Brooks, Carl Sturken and Evan Rogers.  Her debut single, the song was released on May 24, 2005 as the lead single from the album.  Prior to signing a six album record deal with Def Jam Recordings, "Pon de Replay" was one of three songs which was recorded for her demo tape to be sent to record labels.  It is a dance-pop, dancehall and R&B song that features elements of pop and reggae.  The lyrics revolve around Rihanna asking a DJ to turn the volume of her favorite songs up louder.  The name means "play it again" in Bajan Creole, one of Barbados' two official languages.
Answer: Rihanna